It won't let u add a gin for a few reasons. The main reason is you are new. New members can not offer GIN (get it now) until they receive their Sellers wings. The sellers wings will be awarded to you once u complete a certain amount of tasks- like gain so many fans, gain so many positive feedback, give so many positive feedbacks, check in so many times etc. u can read the exact info in the Listia rules section. Also, once you do receive your sellers wings, and you do have the option to add a GIN to a auction, you must add the GIN BEFORE the first bid is placed. So if someone has already bid. -and you haven't set a GIN on that auction yet, you will not be able to. :) Nice auction! Hope i helped clear things up a bit for you! Welcome to Listia! F&W (Fanned & watching)