Are you seeing this error?: "You need to create a seller's account. (Before you can list this item we need some additional information to create a seller's account.)"
This error probably means that don't have all the necessary information filled out on eBay for your seller account. Try creating a listing manually directly in eBay's interface -- eBay will then give you a better description of what information they are missing. In particular, log into your eBay account and add an automatic payment method for your eBay selling fees. Then delete the listing you created in eBay and try again in JoeLister.