Bidslammer shows that I won the Mara Hoffman auction. But the dress is not showing up on my ebay account as as something I need to pay for or something that has been paid for.

Hello Hannah,
Thank you for your question about this item. When we query eBay, they give us a list of items that you won. This item is on the list.
I think in this case you need to contact the seller, just to make sure you fulfill any obligations.
I hope this has been resolved to your satisfaction. If you have additional questions, please be sure to respond and we can take the next step.