Hello
These errors are all about vbulletin files. It appears some hack or something in
vb is looking for your
vb files in the photopost directory.
The place we tell where
vb is installed at is in config-int.php on the $vbpath. However you dont have a photopost issue because your photopost is loading fine with the
vb header it looks to me like your issue is with
vb hacks.
try turning off the
vb plugin system