Thanks Andante, I love it , but it's considerably longer than it should be at the moment. I've used audacity to slow it down so I can play along, and it's gone from 3.35 mins to 5 mins like that. Showed me 2 places where I'd read the note length wrongly, so audacity is a big help. I think I may be cheating with the 'counting to come back in' tho... I know the tune well enough to not count it but join in by ear.
If I can get it fast enough by friday (rehearsal) I may try it as a solo for the xmas concert. Have I gone mad?

I think so, but in for a penny in for a pound. If I can manage a solo for a small friendly concert I should be able to manage an exam if I so wish. Sort of like testing the water by jumping in feet first!