hello,
this is strange for me
it should be look like
nusantaraku.org/forum/forum.php (there are vbadvance modules there)
but it redirect to nusantaraku.org/forum (if i open that index.php, without vbadvanced modules)
then i copied that /forum/forum.php to /forum/index.php
that the samething happened, still no vbadvanced module there.