diff --git a/fp-plugins/commentcenter/inc/admin.php b/fp-plugins/commentcenter/inc/admin.php
index 19a56e0..bd039d7 100644
--- a/fp-plugins/commentcenter/inc/admin.php
+++ b/fp-plugins/commentcenter/inc/admin.php
@@ -122,7 +122,7 @@ class admin_entry_commentcenter extends AdminPanelAction {
 		$smarty->assign('pl_conf', $conf);
 
 		$conf=$plugin->getConf();
-		if($conf['akismet_check']) {
+		if(isset($conf) && array_key_exists('akismet_check', $conf) && $conf['akismet_check']) {
 			$akismet=$plugin->akismetLoad();
 			if(is_numeric($akismet)) {
 				$error=$lang['admin']['entry']['commentcenter']['akismet_errors'][$akismet];
diff --git a/fp-plugins/commentcenter/tpls/configure.tpl b/fp-plugins/commentcenter/tpls/configure.tpl
index f5bbf93..bd32512 100644
--- a/fp-plugins/commentcenter/tpls/configure.tpl
+++ b/fp-plugins/commentcenter/tpls/configure.tpl
@@ -2,6 +2,9 @@
 {html_form}
 <h2>{$plang.configure}</h2>
 <p>{$plang.desc_conf}</p>
+{if !isset($pl_conf)}
+	{assign var=pl_conf value=""}
+{/if}
 
 <dl class="option-set">
 	<dt><label for="log_all">{$plang.log_all}</label></dt>
@@ -25,12 +28,22 @@
 	</dd>
 	<dt class="akismet_opts"><label for="akismet_key">{$plang.akismet_key}</label></dt>
 	<dd class="akismet_opts">
-		<input type="text" name="akismet_key" id="akismet_key" value="{$pl_conf.akismet_key}" /><br />
+		{if isset($pl_conf.akismet_key)}
+			{assign var=akismet_key value=$pl_conf.akismet_key}
+		{else}
+			{assign var=akismet_key value=""}
+		{/if}
+		<input type="text" name="akismet_key" id="akismet_key" value="{$akismet_key}" /><br />
 		{$plang.akismet_key_long}
 	</dd>
 	<dt class="akismet_opts"><label for="akismet_url">{$plang.akismet_url}</label></dt>
 	<dd class="akismet_opts">
-		<input type="text" name="akismet_url" id="akismet_url" value="{$pl_conf.akismet_url}" /><br />
+		{if isset($pl_conf.akismet_url)}
+			{assign var=akismet_url value=$pl_conf.akismet_url}
+		{else}
+			{assign var=akismet_url value=""}
+		{/if}
+		<input type="text" name="akismet_url" id="akismet_url" value="{$akismet_url}" /><br />
 		{$plang.akismet_url_long|sprintf:$smarty.const.BLOG_BASEURL}
 	</dd>
 </dl>
diff --git a/fp-plugins/commentcenter/tpls/listcomments.tpl b/fp-plugins/commentcenter/tpls/listcomments.tpl
index f90cbf1..b1ea548 100644
--- a/fp-plugins/commentcenter/tpls/listcomments.tpl
+++ b/fp-plugins/commentcenter/tpls/listcomments.tpl
@@ -1,34 +1,36 @@
 <table class="entrylist">
 <thead><tr>
-{if !$delete}<th></th>{/if}
+{if !isset($delete)}<th></th>{/if}
 <th>{$plang.app_date}</th>
 <th>{$plang.app_content}</th>
 <th>{$plang.app_author}</th>
 <th>{$plang.app_email}</th>
 <th>{$plang.app_ip}</th>
-{if !$delete}<th>{$plang.app_actions}</th>{/if}
+{if !isset($delete)}<th>{$plang.app_actions}</th>{/if}
 </tr></thead>
 <tbody>
 {assign var="i" value=0}
 {foreach from=$entries key=entryid item=entry}
-{if count($entry.$fetch)>0 && !$is_managing}<tr><td colspan="{if $delete}5{else}7{/if}">{$entryid|idToSubject} ({$entryid})</td></tr>
+{if count($entry.$fetch)>0 && !$is_managing}<tr><td colspan="{if isset($delete)}5{else}7{/if}">{$entryid|idToSubject} ({$entryid})</td></tr>
 {/if}
 {foreach from=$entry.$fetch item=comm key=comm_id}
 {assign var="i" value=$i+1}
 <tr>
-{if !$delete}<td class="td_select_{$fetch}"><input type="checkbox" name="select[e{$entryid}_c{$comm_id}]" /></td>{/if}
+{if !isset($delete)}<td class="td_select_{$fetch}"><input type="checkbox" name="select[e{$entryid}_c{$comm_id}]" /></td>{/if}
 <td>{$comm.date|date_format:"%D, %T"}</td>
 <td class="main_cell">
 {$comm.content|strip_tags}
-{if $delete}<input type="hidden" value="on" name="select[e{$entryid}_c{$comm_id}]" />
+{if isset($delete)}<input type="hidden" value="on" name="select[e{$entryid}_c{$comm_id}]" />
 
 {/if}
 </td>
-<td>{if $comm.url}<a href="{$comm.url|wp_specialchars}">{$comm.name|wp_specialchars}</a>{else}{$comm.name|wp_specialchars}{/if}</td>
+<td>{if isset($comm.url)}<a href="{$comm.url|wp_specialchars}">{$comm.name|wp_specialchars}</a>{else}{$comm.name|wp_specialchars}{/if}</td>
 <td><a href="mailto:{$comm.email|wp_specialchars}">{$comm.email|wp_specialchars}</a></td>
-<td>{$comm.ip-address}</td>
-{if !$delete}<td>
-{if $is_managing && $use_akismet}
+{* a bit hackish: {$comm.ip-adress} would lead to $this->_tpl_vars['comm']['ip']-$this->_tpl_vars['ddress']; *}
+{assign var=ipadress value="ip-address"}
+<td>{$comm.$ipadress}</td>
+{if !isset($delete)}<td>
+{if isset($is_managing) && isset($use_akismet)}
 <a href="{$action_url|cmd_link:commspam:"e`$entryid`_c`$comm_id`"}" title="{$plang.man_spam}"><img src="{$plugin_url}imgs/spam.png" alt="{$plang.man_spam}" /></a>
 {elseif !$is_managing}
 <a href="{$action_url|cmd_link:publishcomm:"e`$entryid`_c`$comm.id`"}" title="{$plang.app_publish}"><img src="{$plugin_url}imgs/publish.png" alt="{$plang.app_publish}" /></a>
@@ -48,10 +50,10 @@
 {/foreach}
 {/foreach}
 {if $i==0}
-<tr><td colspan="{if $delete}5{else}7{/if}">{$plang.app_nocomms}</td></tr>{/if}
+<tr><td colspan="{if isset($delete)}5{else}7{/if}">{$plang.app_nocomms}</td></tr>{/if}
 </tbody>
 </table>
-{if !$delete}
+{if !isset($delete)}
 <div class="commentcenter_select" style="display: none;">
 	<a href="#" rel="selectAll[td_select_{$fetch}]">{$plang.select_all}</a> 
 	<a href="#" rel="deselectAll[td_select_{$fetch}]">{$plang.deselect_all}</a>
diff --git a/fp-plugins/commentcenter/tpls/listpolicies.tpl b/fp-plugins/commentcenter/tpls/listpolicies.tpl
index 3f22152..6424066 100644
--- a/fp-plugins/commentcenter/tpls/listpolicies.tpl
+++ b/fp-plugins/commentcenter/tpls/listpolicies.tpl
@@ -1,18 +1,18 @@
 <table id="commencenter-table">
 	<thead id="commencenter-table-head">
 		<tr>
-{if !$delete}			<th style="width: 10%;">{$plang.select}</th>{/if}
+{if !isset($delete)}			<th style="width: 10%;">{$plang.select}</th>{/if}
 			<th class="main-cell">{$plang.criteria}</th>
 			<th style="width: 20%;">{$plang.behavoir}</th>
-{if !$delete}			<th style="width: 25%;">{$plang.options}</th>{/if}
+{if !isset($delete)}			<th style="width: 25%;">{$plang.options}</th>{/if}
 		</tr>
 	</thead>
 	<tbody id="commencenter-table-body">
 {foreach name=policies from=$policies key=id item=policy}
 <tr class="tr_policy{$id}">
-{if !$delete}	<td class="td_select"><input type="checkbox" name="select[{$id}]" /></td>{/if}
+{if !isset($delete)}	<td class="td_select"><input type="checkbox" name="select[{$id}]" /></td>{/if}
 	<td class="main-cell">
-{if $delete}<input type="hidden" name="del_policy[]" value="{$id}" />
+{if isset($delete)}<input type="hidden" name="del_policy[]" value="{$id}" />
 {/if}
 {if $policy.is_all}
 		{$plang.all_entries}
@@ -45,7 +45,7 @@
 {elseif $policy.do==-1}
 	<td>{$plang.block}</td>
 {/if}
-{if !$delete}	<td>
+{if !isset($delete)}	<td>
 <a href="{$action_url|cmd_link:polup:$id}" title="{$plang.up}" rel="polup[{$id}]"><img src="{$plugin_url}imgs/up.png" alt="{$plang.up}" /></a>
 <a href="{$action_url|cmd_link:poldown:$id}" title="{$plang.down}" rel="poldown[{$id}]"><img src="{$plugin_url}imgs/down.png" alt="{$plang.down}" /></a>
 <a href="{$action_url|cmd_link:poledit:$id}" title="{$plang.edit}"><img src="{$plugin_url}imgs/edit.png" alt="{$plang.edit}" /></a>
@@ -54,7 +54,7 @@
 </tr>
 {foreachelse}
 <tr>
-	<td colspan="{if $delete}2{else}4{/if}">{$plang.nopolicies}</td>
+	<td colspan="{if isset($delete)}2{else}4{/if}">{$plang.nopolicies}</td>
 </tr>
 {/foreach}
 	</tbody>
diff --git a/fp-plugins/commentcenter/tpls/manage.tpl b/fp-plugins/commentcenter/tpls/manage.tpl
index 8e844e7..ce392d0 100644
--- a/fp-plugins/commentcenter/tpls/manage.tpl
+++ b/fp-plugins/commentcenter/tpls/manage.tpl
@@ -2,6 +2,9 @@
 {html_form}
 <h2>{$plang.man_searcht}</h2>
 <p>{$plang.man_searchd}</p>
+{if !isset($entry_id)}
+	{assign var=entry_id value=""}
+{/if}
 <p><input type="text" name="entry" value="{$entry_id}" />
 {html_submit name="entry_search" id="entry_search" value=$plang.man_search}</p>