I am having trouble Texturing a circle. I understand how to texture a quad, but texturing a Circle befuddles me. Any help would be appreciated.
You are not saying what exactly your problem is, other than your attempts to texture a circle don’t yield the expected results. That makes it difficult to help you, see the forum posting guidelines for suggestions how to avoid that problem.
In general texturing always works the same way: you assign texture coordinates to the vertices thereby identifying points in your texture with points on your object. For a circle you probably want to map a circular part of your texture to it, so you need to choose texture coordinates that describe that circular part.
I have figured out my problem, I no longer need assistance.