Yea, the retreval (sp?) of passwords is a relatively new option for SOCOM 3, if you would have asked this a couple of months ago, you would have just had to either wait until now, or just go without.
To retrieve the password, you must have had entered a secret question, and know the asnwer to that secret question. If you dont know those, I believe you cant retrieve it still.
Edit - Just saw your edit L3g3nd, no the site has not gone. I just went on it after seeing your post and its there. ;-)