Nevermind, I figured out how to do a manual install and removed the game entirely so I could reinstall. The most work I had to do afterwards was extract all of my old custom content downloads.

For the longest time I couldn't install the game patch and in order to do it I had to backup my files and do a complete uninstall. Well I did that and all seemed well, but when I added the backup files to the new files it erassed my saves and saved sims. So I did, the big mistake, of doing system restore to my computer. Now, my game won't only run, I can't even uninstall it no matter how hard I try. I have windows vista, and it's a new computer. Can anyone please help me? I still have all of my old files saved on a usb cruzer, but I can't do anything about my game.

Yeah I still can't install the patch, even after maxis made an update to fix that problem.  It still says "invalid file found"

I read on yahoo answers that pregnant sims can change their maternity clothes, but mine cannot.  My pregnant sim was stuck with the same everyday outfit (ugly grey fitness wear).  I tried planning the outfit but that option isn't available at any time.  Am I doing something wrong?  Can this be fixed? Also, my pregnant sim can't change her appearance in the mirror.