Well, it wasn't working. Luckily my husband knows enough to recognize it didn't have a memory card.
I didn't know what a memory card was, and didn't register what "memory stick SD card adaptor" in the ebay description could mean. It meant I still needed a card to go in that adaptor. Oops. But hubby had a spare and now I have one. So yay. But I need to rest and recuperate before I try to take marble pictures.