I made some changes..

I'm too lazy to post a screenshot but I think it does look cool. This is the code (replace the entire template):

<tr>
<td bgcolor="{categorybackcolor}" height="21" colspan="8" align="center">
<normalfont>
<dev align="center">

<table style=filter:glow(color=#000000 strength="4")><font color="{timecolor}">Announcement: </font></table>

<a href="announcement.php?s=$session[sessionhash]&forumid=$foruminfo[forumid]">$announcement[title]</a>
<font size=1>posted by <a href="member.php?s=$session[sessionhash]&action=getinfo&userid=$announcement[userid]" target="_blank">$announcement[username]</a></dev></normalfont>
</td>
</tr>