Right, I'm back up and running again
Turned out that when I tried to hot-flash in the AV8 board, awdflash wouldn't do it. I read somewhere that on the nforce2 boards, you're better off using awdflash8.22 whereas I had 8.23k on my floppy.
Doing some searching on the web, the AV8 is too recent for awdflash 8.23 to work.
Downloaded the latest one, tried flashing using the -tiny switch and it worked a charm.
Came back home, popped the BIOS chip back in the NF7-S board.
Never had a POST beep reassure me soo much.
Thanks a lot for your help guys