eBay does maintenance every Friday from 1am-3am. Their site is completely down during this time and no bidding is allowed either directly on their site, or through AuctionSniper.
eBay has many automated ways for sellers to start listings and somehow this seller started his auction while eBay was down the prior week.
This is a FANTASTIC way to pick up very good deals on eBay. We are modifying our systems to place you bids at 12:59 am just before eBay goes down. However we haven't added this feature yet.