Here's the situation: I've tried to download the expansion packs from the site BUT I keep getting an error message saying that I'm do not meet the requirements (or something like that).

So is there an alternative site where I can get these Expansion Packs?

If You Do Not Know Or Can't Help, Do Not Respond With Anything Irrelevant.

Supposedly, they were up on the Playstation Store at one point, but I don't see them there, anymore. Maybe it's different if you access the site with a PSP?

I've tried doing it through the PsP and I couldn't even get to it.

I looked it up and the content is only on the UK PS Store as of now. Which confuses me because there are some Americans that have the new content.

There must be some place they're getting it from, wish I knew where.

They're probably getting it from the game's website . As far as I know, it's the only place to get the content if you're in the US.

I went to the Official Game Site and it showed the downloads but didn't show how to download them.

Looks like it doesn't matter. The downloadable content isn't available for the US market, yet. You'll have to wait.