Getting images to appear in banners

I've heard from a couple of people that they were having trouble getting images to show up in their banners. People using WordPress seem to be having more success than those using Blogger. I'm not sure why. I am playing around with my banner to see what happens.

On my first attempt I did an image from my computer, and the image was way too big. On my second attempt I did an image from Flickr. At first I got an "invalid URL" message, and then I noticed that somehow the URL was listed as "http://http://blahblahblah..." I took out the first "http" and now it is working fine. I am going to attempt to get images from another source, and see what happens with those.

I got the current image from Photobucket. Seems to be working okay for me. I guess I'll go to the Drop-in session on Thursday, and see if I can help anyone else figure it out. I'm not sure what I did to make it work, but it's working for me now.

Here's the image link--

http://media.photobucket.com/image/library%20umass/megzluvstarheels/umass%20amherst/UMassAmherstuploaded9-19-08012.jpg?o=4