Hey Bud,

Lunar photography is something I dabbled in but have yet to get a good shot. I can tell you by looking at the photo that the shot is underexposed, which means not enough light was getting to your film. Either a longer exposure is needed at your current setting, or you need to open up your lens more. It's tricky. Check out this website for a directory on more information on lunar photography:

Moonlight Photography

This one in particular has got some great information and exposure tables to calculate proper exposure.

Lunar Photography