Prospector uses three formats for presenting results. You can switch between them through the View / Format set of menu items.
You can customize many aspects of these formats through the Customize Format dialog box.
The List Format is closest to eBay's horizontal layout. Prospector places the details that you choose (notes, seller, bidders) under the title.
The Tile Format is a compressed vertical layout with the picture and title centered over the details.
The Report Format is a compressed layout with the picture to the left of the title and details.
Additionally, with the View / Large Thumbnails option, you can switch between the normal 64x64 thumbnails images and larger 96x96 ones.