Fiat Ducato 1.8 petrol, 15yrs old. Been left idle 5.5 months, only 600 miles since MOT and service in August 08. Tried 'bumping' the flywheel. Cannot put into gear when engine running. Can put into gear without engine running. So tried putting into fourth and fifth gear and starting engine with foot on clutch to 'bump' the presumed seizure out. Tried about 25 times till either the battery gave out or the starter motor (maybe). I'm a novice everything so did this on advice of neighbour. Any other top tips please? Thank you in advance.