In addition to the other advice I gave in my last post, sometimes it's not anything wrong with anything at all. Sometimes TSR, especially if you download something as a sims3pack, botches up the download, and you'll end up with a dud file. :( When you put it into the Launcher, instead of seeing a proper thumbnail, all you'll see is a brown box--you'll know it when you see it: TRUST. ;) 9 times out of 10, if you try to INSTALL anything showing up as a brown box in the Launcher, the installation will FAIL. But don't despair! Extract the ZIP file wherever you need it, and reinstall the sims3pack(s) within. This time, the installation SHOULD work. ;) This happens me when I download things at LEAST twice a day, and dl-ing file as ZIPs instead of has ALWAYS worked for me. ;)

Happy Simming! :)