just cant get the thing working

[Megalexxx]

If it shows 2 sessions, it's bound to be selfboot.

There's a LBA patch on DC Copy World for Tony Hawk 2.
I'm quite sure your burner doesn't support LBA = 11700.
You should try to patch your CDI file and then burn it.

http://www.megagames.com/dc/dc_patches_t.shtml