Sorry to hear that didn't help you out.
If you don't mind using Origin, you may be able to ask EA for a copy of The Sims 2 Ultimate Collection. Just let them know you're having problems installing your disc copy in Windows 8 and they will likely provide you with a code. Then it's a much simpler download and install. Might be worth it especially if you don't have all of the expansions and stuff packs already.
Hope this helps and happy Simming!
Flynn