Does anyone has a working Creative X-Fi with 64studio ?

I installed the Creative drivers today, latest pack as of 5 Sept. Compilation OK but if I check the log, I see the entry: FATAL: Error inserting ctalsa (/lib/modules/2.6.21-1-multimedia-amd64/kernel/drivers/ssound/ctalsa.ko): Unknown symbol in module, or unknown parameter (see dmesg) No idea as to what this means but no sound right now. Can anyone help ? Thanks.