With Sims 3 I want to become involved with building houses/lots and making my creatiions available for other players to download from the Sims 3 website, but I don't know how to do it. How do I go about first finding a house I have created on my computer and then uploading it properly to my user page? Help me understand this please?!?? I've never done it with the previous versions, so I'ma complete n00b! Anyone?