Downloading Simpoint/Store Items?

Hello, how do I download items that would normally require SimPoints? Is there a guide similar to the base game installation?

Thanks in advance.

Hello. Thanks for the link, but I wasn't referring to The Exchange. I was referring to the extra EA-made items that need SimPoints to be bought. This includes the extra towns like Midnight Hollow...

Sorry, my bad. I don't know what I was thinking. You can download The Sims 3 Store updates 1 to 26 (Up to July) from here. Or if you want to chose only the stuff you want go here, but it doesn't have all the stuff yet.