handlep is right about the charges...Auctiva will show the usual 35c but if you check your ebay invoice it will show the discount.
I DID see a question & answer awhile back about the scrolling gallery but can't find it now...Go to the help button and file a support request, ask them to change it for you. I asked them to add it to my 29 existing auctions and they took care of it within a matter of minutes