Well what I can guess is that code has changed between versions. I no longer have that version. Post a link to a text version of your admin_compact.asp file.
but I went to fodler where is my DB (/fpdb) and find Snitz_Compacted.mdb and renamed to normal name od my DB Kohorta_Online.mdb and now forum works much faster (hm but stil sometimes is about 2-4sec).