hi bernie,definitley sounds like clutch plate is rusted to flywheel/clutch cover. did you try starting in gear with clutch pressed? have a look for a cover plate or any access in bell housing that could give access to edge of clutch plate,and again with pedal pressed,you could try a thin chisel or screwdriver on edge between flywheel and plate and give it a light tap which may free it,may need to turn engine a bit for access.failing these you may have to remove gearbox!good luck.
k, April 2013