after taking my engine out, ive drained the gearbox oil, and look what came out!!! its a tooth about an inch long, of some sort of gear selector? Must be the reason why 1st gear isnt working, im surprised it didnt damage the rest of the box.
im still trying to establish if its an oil seal in the gearbox (which is most likely) or if its the main bearing seal (behind flywheel) as the clutch and flywheel are greasey.

regards
Chris