Yeah, you have to use the starter that maches your tranny, or you can do what i did.
I got a 2000 GSR starter and switched the mouning bracket from the b16 on to the GSR one. Only the two long bolts and on screw match up, so there is two screws that arnt used. It works fine for me.
When you try to fit it with the GSR bracket, the holes dont match up to the tranny.