The options to customise the search have been reduced rather drastically, and I guess they're still working on a few things because there is absolutely no difference between selecting small gallery images and large gallery images. There's no option to have the default search order Price + Postage lowest/highest first, either, just lowest/highest price. 

Re: The eBay shops box, when searching I occasionally noticed it but never clicked on any of the links. Mostly because I had already set up my default search results to show almost all of the information available, including the seller's ID, so I could always see at a glance if one seller in particular had several items I was interested in. Now the seller's ID and store name seems to be displayed by default, with the store name a clickable link, so I don't think the absence of the box will affect sales.