On this forum, when I look at the source code I see this:
HTML Code:
<td class="alt2"><a href="member.php?u=xxx"><img src="/custompics/forum/avatars/avataryyy_1.gif" width="80" height="80" alt="zzz" border="0" />
I think I would either modify the alt2 class, but then you would get rid of all link underlines for anything using the alt2 class. Or you could try adding a style to the link:
HTML Code:
<td class="alt2"><a href="member.php?u=xxx" style="text-decoration: none;"><img src="/custompics/forum/avatars/avataryyy_1.gif" width="80" height="80" alt="zzz" border="0" />
I think that will work, but I'm a trial and error type coder.