I’m a longtime user from GS, my actual version is 7.0.18 (854). I purchased 1 year ago the Paid Image Service for 12 months. I wanted to try to buy it again but an error appears and I’m unable to purchase it again.
If you want to stay with GarageSale 7 and list fixed-price items you need to switch to eBay’s picture service in the GarageSale preferences > eBay > eBay Images.