Well, you got me on this one. Your lead time was a little lower then I would have used, but it should have been OK.
I can only give you 3 ideas:
1) Wait for someone else to come to this forum and do a better job of helping you.
2) click here to file a support case: http://support.auctionsniper.com/
3) click here for a free snipe for the one missed: http://www.auctionsniper.com/freeSnipes.aspx
Sorry I couldn't help you.