Apparently after reading much information this is impossible or is there a way to work around this?

The page is in a frameset, validates in the CSS Validator with a 2.1, no errors. In the HTML Validator there are three errors and that's because I am using an attributes which aren't permissible.

I have two images, one for the right and one for the left side, they are both the same size and want them fixed, the left side works fine but can't introduce the right side, is there a way of doing this?