No Themes…Help?

I’m sure this has been asked before…but I can’t find the answer on here.

I want to use wordpress…without themes, I guess. I just want it to grab the info from the database and post it on my homepage (http://www.regionaltaekwondocenter.com) how it looks with my current CSS layout.

Without using iframes, is there a way to do this? (My server is php enabled) I want it to be kinda like this tutorial http://chrisjdavis.org/adding-wordpress-to-an-existing-site