Well, i just encountered another mod-install problem, this time for Check the Bodies V147-Game files.
I can unpack it normal, but when i am running the install in my BGII directory, it gives a strange error. It goes like this:

Warning: unable to open [checkbod/backup/0/UNINSTALL.0]: Sys_error ("checkbod/backup/0/UNINSTALL.0: No such file or directory")

And it says that there are also problems with TOB Patch26498 and the override and some more.
Can anybody please tell me what the heck is wrong here?

Did you install the CtB core files as well? That's the most likely reason it couldn't find a bit of it.

Your dearchiving utility probably did not extract the backup directory.

Create a folder called checkbod\backup and try running the installer again.

Okay, but how big are the core files?

144mb IIRC

Erm, that's big, but is the Mod worth it?