i found this FBAlpha "Microsoft excel worksheet" document a while back
and to be honest it has been such a big help as it gives a beautiful detailed description of what works etc...
i take no credit, but would like to say thank you to who ever created it
A VERY BIG THANK YOU INDEED
so those of you who are interested in FBAlpha and what rom sets it uses
(they are different from MAME32's)