[abrecher]

Nice mod. I've corrected your English grammar:

<if condition="$show['forumdesc'] AND THIS_SCRIPT == 'forumdisplay'">
<table class="tborder" cellpadding="$stylevar[cellpadding]" cellspacing="$stylevar[cellspacing]" border="0" width="100%" align="center">
<tr>
<td class="alt1" width="100%"><h1>$foruminfo[title]</h1>
<span class="smallfont">Below you will find a list of discussions in the <b>$foruminfo[title]</b> forums. $foruminfo[description]</span></td>
</tr>
</table>
<br />
</if>

<if condition="$show['forumdesc'] AND THIS_SCRIPT == 'showthread'">
<table class="tborder" cellpadding="$stylevar[cellpadding]" cellspacing="$stylevar[cellspacing]" border="0" width="100%" align="center">
<tr>
<td class="alt1" width="100%"><h1>$threadinfo[prefix_plain]$threadinfo[title]</h1>
<span class="smallfont">This is a discussion on <b>$threadinfo[prefix_plain]$threadinfo[title]</b> within the <b>$foruminfo[title]</b> forums.
</td>
</tr>
</table>
<br />
</if>