well i can inform you as a member of the pcsx2 community that the project is still in progress and there is still the 0.92 version which doesn't play all the games!
The tekken 5 is one of the games that the emulator cannot support yet!Maybe the next release!The stage that the program is right now you cannot play many games,but still there are some older games that are playable!as i heard from the developing team the next version will support X64 machines and many games will be playbale!
Link: www.pcsx2.net for latest news and updates!
PS.The site doesn't give you bios because it's illegal!but still you can find it on net,,,google is your friend,and mine too!!:P