I'm looking forward to seeing what happens with Wave and other ideas like it. Email communication at companies needs a lot of work, plus managing lists and team addresses is messy.
Good article on Google Wave and Facebook Graph...
Sounds like that could be a temporary problem with eBay, it's happened to me before. Try waiting it out a bit and coming back to it later. It will resolve itself in a matter of time. Their image gallery scripts are not the most clean.