how narroe do you want to get it, removing the read column won't make that much difference, since it will squash up pretty small, as for the lastpost column, removing the between the date and the time should help reduce it's width, that can be done by searching for this code ChkDate(Topic_LastPost,"</b> ",true)
in forum.asp and changing it to ChkDate(Topic_LastPost,"</b> ",true)