Ok did a quick google search because i cant remember exact details (its been a while since ive used windows)
Fist thing is to follow this link How to disable SFS and Share disks.
That should get the drive viewable.
Being that its FAt32 it shouldnt be to hard to recover the data.
But in future maybe look at converting to EXT2/3 and sticking the drive on a timemachine or airport as the shared drive, or you could access it using something like this. Access EXT2/3 from Windows
True it would mean that its not sharable with random PCs but then thats not a bad thing
Fist thing is to follow this link How to disable SFS and Share disks.
That should get the drive viewable.
Being that its FAt32 it shouldnt be to hard to recover the data.
But in future maybe look at converting to EXT2/3 and sticking the drive on a timemachine or airport as the shared drive, or you could access it using something like this. Access EXT2/3 from Windows
True it would mean that its not sharable with random PCs but then thats not a bad thing