There isn't necessarily a problem, I'm just stating what happened. You ended the auction early with one bid, which I guess you're allowed to do. It just sucks for the people who were watching the item and planned on bidding on it to see it suddenly gone without being able to make an offer themselves.
As far as the 666 WTL goes, I'm just trying to help you out by advising you to lower your starting price to something reasonable. You may not end up making the $778 that you apparently want, but another copy on there started out at $0.99 and has worked its way up to $600 with still a day and a half left to go. If that person started off their auction at $600, though, no one would bid on it.