That's some geeky sounding stuff up there in the title, but I assure you, putting round frames on your photos is actually pretty simple. I wrote a tutorial for the Everything Typepad Blog, and you can check it out here.
You can add circle frames to photos in blog posts, sidebars, and even on photo-sharing widgets like SnapWidget. Pretty neat, ay?
I forgot to mention another post that I wrote for them recently, that I think you might also really like. Check out this post for my best tips on writing a great recipe post.