The Ultra2 SCSI Card Firmware Update 1.1 is not compatible with the PowerDomain 2940U2W PCI Card. It is intended for use strictly with the Apple-supplied Ultra2 2940U2B SCSI card available with the Power Macintosh G3.
The commercially available PowerDomain 2940U2W PCI Card is supported by Adaptec, who has provided a similar firmware update for their product. Their update is available at:
http://www.adaptec.com/support/overview/pd2940uw.html