[Xenon]

ok, then the hack itself..... ^^

in memberlist.php find:

PHP Code:

eval("\$memberlistbits .= \"".gettemplate("memberlistbit")."\";"); 


and replace it with:

PHP Code:

if ($counter % 4 == 0) $memberlistbits.= "<tr>";
eval("\$memberlistbits .= \"".gettemplate("memberlistbit")."\";");
if ($counter % 4 == 3) $memberlist.= "</tr>"; 


then edit template memberlistbit and take out the leading and ending <tr></tr> tags.
last thing is that you have to edit the template memberlist itself to make another table header