Hello ! =)
I search the same thing too, since many months. I tried to rip many times with PSound, and I only got the main theme, you can downlaod it here :
http://www.sendspace.com/file/8d79eq =)
As for the complete game score, I ripped it with Cube Media Player 2 (
http://my.opera.com/PlayStation2/blog/show.dml/319113), and I got a total of 30 tracks, but the bad thing is that I need to pay for the full version of CMP 2, the free version doesn't lets me save or listen to the tracks :-(.
Maybe, if you try too, you'll can save the soundtrack ? =)
sorry I know nothing about ripping songs from games:-(