Thanks einsteinsboi you say it so much better than I do.
I am developing a site at present (my first using any CMS).
I have used no graphics yet just background images.
kOLDSQ you can take a look
http://www.ctsoe.org
If you could imagine your header and sidebar images in this template.
Would this suit your purpose???
The template only gives you the boxes in the correct places for you to use your unique images.
I think you could use Photoshop or The Gimp(Open Source (FREE)also quite a learning curve) to cut up your image.
I also strugled to see what modx was doing with your site.