My 8800GTX's have two SLI connectors, you cannot use three way SLI. Besides that, his card(s) don't even have two connectors.
http://c1.neweggimages.com/NeweggIma...130-327-06.jpg
These are what are used for 3 way SLI.
http://www.pcper.com/images/reviews/495/bridge1.jpg
Once again, you cannot put 8800GTS's in 3 way SLI.