Update:
Well, I walked away from it for a bit and then came back. I have it working! Swapped the sata and power fixed bay cable to one of the the white connectors on the MB, reformatted the older 320gb HD from an XP machine, had to contact ibuypower for a windows 7 installation disk which they sent to me for a reasonable fee. as the activation code was an OEM. Copied the disk contents to a flash drive and installed. Works fine, runs CS GO perfectly ( as was my goal), my only concern is the power used by the Radeon cards (crossfire), they were actually dual HD 5970 2gb as opposed to what was thought to be dual 5870 1gb cards. I may sell them on ebay and get a lighter on the power used 4gb card, any suggestions?