[CentOS] Serverworks HT1000 chipset drivers (Supermicro H8SSL motherboard)

Anyone using boards with this chipset?  I've gotten some dual core 
single cpu boxes along with the physical dual cpu boxes I just received 
and they're using the Serverworks HT1000 (Broadcom 5785) chipset.  My 
CentOS 4.2 DVD doesn't want to recognize the chipset so I can't see any 
of the SATA drives in the integrated SATA ports.  Drives on 3Ware cards 
work as expected, but I was hoping to also make use of the integrated 
SATA ports.  I'm downloading 4.3 via bitorrent now, but I suspect that 
isn't going to solve the problem without some command line magic. 

Any suggestions would be greatly appreciated.

Cheers,