:!: Figured it out on Windows 7 (x64).:!: First, go to C: Program Files (x86) Origin Games The Sims 2 Ultimate Collection Fun with Pets SP9 CSBin. (same place as Bodyshop) You should see PackageInstaller. Double-click it. Give it a minute. A screen should say 'Double-click a sims2package to install it'. Then, go find a sims2pack file and double-click it. It should bring up the 'which program do you need to open this' screen.
Post problems with the Clean Installer here. Download habil plus serial killer. New posts: Hot thread with new posts: No new posts: Hot thread with no new posts.
Click Browse. Browse to C: Program Files (x86) Origin Games The Sims 2 Ultimate Collection Fun with Pets SP9 CSBin. Choose PackageInstaller. [B]MAKE SURE TO CHECK THE 'ALWAYS OPEN THIS KIND OF FILE WITH THIS PROGRAM' OPTION![/B] Click 'open' or 'Ok'. Wait a minute.
If that familiar 'install this package' screen pops up, do a dance!:bunny: If not, try the steps again and keep researching.:report.