It's ok, I managed to copy the skuversion from the iso file into the install folder and that seemed to work. This thread is pointless now.

OK well, I'm trying to patch my Razor Sims 3, but apparently I can't...I installed the game, and patched it to 1.0.632.00002. However now when I try to patch the game past this point, I cannot. I keep getting the invalid file found error. I tested the files and apparently it's skuversion.txt that won't work. I noticed that on the splash screen thing it says version 1.0.631.00002, however in skuversion.txt it says 1.0.632.00002. How can I get this working?