I'm currently trying to connect my Xbox360 (GTA 4 preparations anyone ?

) to my X-Fi Extreme Music and would like to have DD/DTS Sound with the Digital I/O Module. This is one of the very first X-Fi Cards and it was Retail in a Box.
Now I can't install the you-pax drivers from today. With the setup does the killapps process hang/crash (Bla bla process has to be closed) and when I try to install the driver manually then it says "Installing driver..." and fails with "file not found" error.
Hardware ID:
PCI\VEN_1102&DEV_0005&SUBSYS_00211102&REV_00
PCI\VEN_1102&DEV_0005&SUBSYS_00211102
PCI\VEN_1102&DEV_0005&CC_040100
PCI\VEN_1102&DEV_0005&CC_0401
Vista x64 SP1
4 GB RAM
Bytheway the registration email from the youpax forum never arrived :'(
I managed to install just the drivers from daniel_k but the setup program said "no supported hardware found" even after cleaning the drivers. But after the reboot the sound was kinda crippled... and there was no more CMSS3D. (I use this to do the Upmix to 5.1 of my MP3's)