Raid controller on Compaq 7000T 7EL

[Coach Bakken]

Hi,
Setup; WinME, 768MB Ram, 2 HDD on primary onboard IDE, a DVD and a CDRW on the secondary onboard IDE.
Have just purchased an Ultra ATA 133 raid controller to expand number of IDE units (a new HDD).
The SCSI-controller is listed in the Device Manager as fully functioning.
However, I am not able to access the Raid configure utility at startup, and my PC lock trying to list the devices connected.
Question; does my mobo support Ultra ATA 133?, is there something obvious (or not so obvious) that I can do to rectify and be able to start using my new HDD?