Banner Default Issues for Adsense & Affliate

I have this site, http://geodetecting.com/

Use the banners, I can make the LF & RT smaller but I'm stil have the issue of the banners over lapping into the site, and the top banner is not centered please help?

Bill

The center image, and the left/right

http://www.treasurehuntingexpo.com/metal%20detecting%20book%20cover.jpg 

http://geodetecting.com/media/images/1327331448.jpg 

shouldn't those be smaller in "canvas" size, they are huge.

[edit] the center/footer

http://www.metaldetectingsecrets.com/images/metalfooter.jpg

is to big as well.

If you have Dreamweaver or some other website editor, it is best to try that, then transfer the code.

What do you have your site width set to in the page blocks section?

the left and right images do need to be smaller, they are covering some of the content