Hope this helps! Potential Fix

It wasnt working for me either. This, the "mr. floppy" weapon, and the AW7M@DMODZ weapons pack also didn't work.

The big solution here is to simply place all the mod's files from these folders, into the main Postal2Complete folder.

Also, rename the "Scripts" folders in the mod folders to "System" before replacing them. or simply place all the scripts folder files in the System folder.