*waves* welcome back. And yeah OCT 2004 was after the planetQuake servers tanked one too many times and R finally had it and switched hosts, leading to years of "WHERES THE MODELS AT!" posts.
I would assume PC would be. With XNA though, there should be absolutely no effort in it's transition to 360. We're going to be working with 360 soon, but we're still in the R&D phase right now.
Check your local comic book stores or Toys R Us. A lot of times they will have those figures laying around and have them marked way down to get rid of them.