Image overlapping my links

[littlemoomin]

It appears my vertical links are being overlapped by the navigationRight.jpg which is the right slice of the left column box with the rounded corners. How can this be fixed!?

I want the buttons to be central in the box with the same amount of margin on both sides. Thanks!

[Kor]

For the beginning you should solve your HTML errors. Make a test on:
http://validator.w3.org/#validate_by_input

One of them: in HTML(XHTML) there is no H7 tag. There are H1 to H6 tags. By the way: why to use XHTML Doctype and XHTML syntax? A strict HTML would have been enough, unless you intend to work with XML files.