WinningByDefault

Yup, I'm afraid it is too late. Signups have closed and the brackets are bring drafted now ready for round d 1 on Monday. Sorry dude.

Click "edit" in the bottom right of your thread, and then click "go advanced."
Paste the image url into the box labeled "thumbnail." Clicking preview automatically empties the box, so that is probably why it didn't work the first time.