did you get a printout of the geometry figures mate???
Cause if you did post them up, and i will take a look at them for ya mate, might be able to see if there is something wrong with the numbers!!!

The things your looking for are :

Front and rear individual camber readings
Set back readings
K.P.I readings
Thrust Angle Readings
Castor Readings
Front idividual toe readings (rear aswell if there machine was good enough )

I Don't want to worry you but how bad was the stack? did it catch the rear whell? You can sometimes tell major damage by a geometry check so try and find them numbers mate