You would need to use the style.css file that is in the download

Dusty.   You would need to go thru the style.css, find every place in it that has a graphic link.  
Find those graphic images in the download package. 
Upload them to Photobucket, get the links, and replace them in the css.

Then, you have to figure out how to make some of the sections in the css work on the forum. 
More then likely you will have to use the headers and footers to do that.

If they are set up IDENTICAL to how I set this one up you could use the header/footer info from this one.
But you NEED to make sure you replace all of the links in that css.   
None of the graphics will show on your forum until you do.

(if they do have complete links in that style.css do NOT use them as you will be using thier bandwidth)

Also remember that credit HAS to be given to the original author of the theme.

Im gonna move these posts over to the Stylesheet Help area Dusty.

make sure to refresh/reload your browser after you modify the style (every time you do so)
if the changes do not appear try clearing your browsers cache.