I finally have an avatar!! I got the idea from a comment my friend made in her liveJournal. The "Mexi-CAN" reference is an old joke, I think, but we were referring to Once Upon a Time in Mexico (great movie, btw. Review in my journal). And, of course, that leads us to Cap'n Jack Sparrow. Woohoo.
BB, you can get avatars from other places by either hitting "browse" where you select the avatar and finding it on your computer or by typing in the address online where your avatar can be found. I hope that helps.