what about for a normal ps3 can i put my own tracks onto the game?
Well, in short no. It's not possible to insert your own music into the PS3 version of PES 2008.
This is because of:
1) You would need a Blu-Ray Disc ReWriter drive for your PC to rip your original PES 2008 disc and then burn back to a BD-R disc using your Blu-Ray Disc ReWriter.
2) You would also need a method for decrypting the music files once you've copied your PES 2008 disc to your Hard Drive.
3) You would then need a chipped or modded PS3 in order to play your PES 2008 BD disc with your own music inserted into the game.
Note that none of the above options are available to any PS3 owners at the moment. This is why it can't be done at the moment.
I'm sure somebody could write a program that can decode the music in the PS3 version of PES 2008 - that's just a matter of time. All you really need is a Blu-Ray Disc ReWriter and a method for modifying a PS3 which after a few years may well be possible to do.