Hi mikeymike,
I won an ebay auction for a record (no-one else wanted) and had a similar thing happen to me. Like you, after about a week of nothing happening I emailed the seller, and received no reply. And then, I think another week later, the record turned up. But I never did get a reply to my emails (I think I sent about 2 in the end.)
So some auctioners are just lazy and uncommunicative. I suggest you wait a bit longer, and if nothing comes then make sure you give the guy some bad press on the site.
Happy bargain hunting :-)
-zudo