page gets messed up, please help

[sebus]

here is how i divided the page in tables:
http://bseenbheard.com/test/tables.jpg

and the side starts separating http://bseenbheard.com/test/artistofthemonth.htm once I put an image into the main section. Why is that and how do I fix this ?

[sebus]

the side (under features) gets more messed up if I make the image in the grey area larger..

[sebus]

if I merge those cells into one and just save the images just as one, then I don't get the stretching... but I can't have it as one image since someone will be changing/updating each of the four buttons.