Ikarus Theme – SIdebar Bug/problem

I am currently using a theme called “Ikarus” on my website:

http://modernselfdefenseacademy.com/

And if you notice, the sidebar (red vertical section) is not tiling the image properly. The image is called “box-hilite-tl.gif” and I have been through the sidebar.php file and am just note sure what the fix is.

Does anyone have any ideaas??? I’m going slightly nuts 🙂