Sims house party expansion

[Allisonw]

Hi I'm new, I just downloaded the sims house party file from gamefix, and had some questions. is it the atual expansion, or a patch or something? I bought all the other expansions for the game, is there any way to add house party from a download and have it run with the others? (if that makes sense) I tried downloading one from KaZaa, but it only ran house party by itself. Well, if any of you can answer these, thanks in advance!