I tried installing an older version of this mod (0.90 I think), and halfway through the installation it said the installation wasn't successful. I then found this version (0.95 RC1); I ran the setup and it said the installation was completed successfully. However, now when I start the game, after the black screen with the "Loading - Story Complete" on the bottom right, it just says "GTA IV has stopped working".

Is there an uninstall.exe somewhere so I can uninstall 0.95 RC1 and any files that could have been added during the corrupted install of 0.90?

Oh, I forgot to mention, GTA IV still ran fine even after the corrupted 0.90 installation. It just stopped working after installing 0.95 RC1.

Sounds like the problem is a corrupt save game. The only way to fix it is to delete the savegames.

I don't think the problem is with my save game cause reinstalled the game and used the same save file and it loaded up just fine.

Read the support guidelines. This is plastered EVERYWHERE before you post. Read them, do what they say, then post here on why you didn't read them and what they ask you to do.