annkate,
If you file a support request using the appropriate link on our help page, our support staff will look into this for you.
Listings that closed a week or two ago certainly shouldn't be displayed in your store window. If this is the case, I recommend you make these listings hidden in your Auctiva store at Auctiva -> Store(tab) -> Edit Items. Any items that are made hidden will no longer be displayed in your Auctiva store, nor will they be displayed in your store window the next time it refreshes, which it does about every 2 hours.
-Mike