need help with a few vb errors (cant log in ect)

[finn snor]

I have a few problems with my vb:
Problems logging in
Cant delete plugins
Error message when moving a thread
cant install a few hacks/plugins
ect.

When asking for help on vb.com they always give this reply:
"Hi

First I recommend reuploading all the default vBulletin non-image files in ASCII mode, overwriting your current files. Also, turn off plugins globally in your vBulletin Options. Does this problem still occur then?"

I tried that with no luck, and i have a phpads hack which is good, but when i disable plugins globally i cant view the forum because of a error that show up because of the Phpads hack.

Anyone here that can give me som advice on what to do ?

Thanks