Okay, I've been trying to put an image in the top left corner using DIV tags, and I failed each and every time. The image just ends up where the header usually goes, above the modules and text. I know you're to use static rather than absolute, but I guess I'm just making my tags wrong.
So, my coding savvy friends, share the wealth. I'll be most appreciative.

Why won't you use what the Xanga people gave you in look and feel?

I should've mentioned this before. I'm using a background pattern already... I'm putting a transparent .gif graphic in the top left, if I can.

Hmm, well can I see your xanga please?

Make sure the alignment of your blog in the Look and Feel section says left. After it's been made left, you should be able to position it however you want.