Spaceing: Very large empty area

Hello, I am new at this, so bear with me. after searching awhile I was unable to come to a conclusion. I am using WP 1.5.2, and Coppermine 1.43, with the coppermine integrator.

Question: How can I get rid of the HUGE empty space between my sig (tim.) and the 0 comments. it makes my main page very long, for just a little text, and a picture. Also when you hover over the picture, green bars appear behind the link. any ideas on what I should do?

oops, forgot the link http://reefraff.com/WordPress/