Re: Big Npc Problem! Please help :(
Are you sure all
your games are patched? If you have anything more than basegame, you need to make sure that all your games are patched. EA screwed up patching. The best way to check that you are all up to date is to use this tool from Mod The Sims. Here: http://modthesims.info/download.php?t=409829
Just download and extract the EXE anywhere. No installation required.
Another problem I can see is maybe you need to clear your cache. You can do this by going to your Documents folder and deleting any Cache files. They will have Cache in the name (SimCompositorCache.package is an example).
If none of this works, try to give us more information on the subject, but otherwise, you may need to reinstall your game.