The tool is being sold as is. I use it for myself, that is its primary purpose of existence. I just thought that someone might be interested in this too, so that could make me some extra satoshis. I really can not guarantee you any additional coding work in the future for 0.01 BTC and similar amounts. It just works now. It would need update only if MtGox changes their API. I might be able to make that change for you in the future if that happens, but not free of charge.

What I can do, however, is to offer you updates in case it stops working within 30 days after purchase. If MtGox changes their API in 30 days from purchase, you will get update for free so that you can use the tool again. If I fail to give you that update within 14 days of your request, you get your money back. This is what I can offer.