FWIW, these drivers add CrossFire support for Oblivion, however, if you want to run HDR+AA in Oblivion, you'll need to run the Chuck drivers: http://www.bit-tech.net/news/2006/04/07/ati_oblivion_aa_hdr/
Install doesn't seem to work for me. The WDM drivers and the CCC install both halt about halfway through. But doesn't actually stall. Just halts the install and hangs there.