Soliciting all stray brain waves (P3n repair):(

[Francis]

My shutter release has kicked the bucket (I'm guessing that it has a two 
stage push button switch that's become erratic due to corrosion from 
salt water). I think it should be a fairly easy fix (if that is what's 
wrong) but I can't get the top plate off because the screw holding the 
film advance lever is not turning.:((
Is it a left hand screw? Is it actually a bolt with a nut somewhere down 
there? Would it be glued for some reason? Does anyone have a repair 
manual for one of these?
This is my only working camera so I'm not feeling very patient. If I 
can't get it working in the next few days I'm buying something else.

Thanks,
Francis