It could be because we originally weren't allowing people to tip themselves, which was causing a slew of problems since (of course) people wanted to try out the button on their site. That was just a big UI oversight on my part; sorry. We've pushed a change out there now, so if you try to tip yourself the button says 'thanks' but instead of 'give more' it says 'you own this!' to the left. Hopefully this will solve your problem. Please email us if it doesn't. Regarding the layout, we'll work on improvements to that and will announce an update on our blog once it's ready.