you can trim the end of the stem and lightly dip it in a rooting hormone (you can buy this at many home improvement store or plant nursery) and plant it in the ground or pot but be sure to have the stem go down deep enough that the soil cover the first bottom node (where the leaf comes out) and water like normal. Leave plant in shade area so it don't get too wilt before the roots can take hold. If you plant now the roots will develop over winter and you should see new shoots in spring. The plant may or may not produce the first spring but it should in the year after. Plant in sunny area with lots of compost when plant is big enough to transplant from the pot.
GIN means (GET IT NOW) You will see this message on top of the page when auction Lister gives all bidders an option to get the item immediately instead of waiting until the auction end at the date posted but you will have to bid with the amount the Lister have set for GIN (hope I don't confuse you) If you are confuse, you should be able to find more info. on "How it works" or "Rules" page.