Trying to post a blog button - Quilt Museum lottery bid vote!

Maybe I just can't think straight but I've been trying to add some html code to put a voting button for the Lottery Awards on my blog, and I just can't seem to get it to work! I keep getting a message that there's an error in the code when I try to put it on the side bar with the other gadgets, but it looks like it might be working here. I'll try it anyway...



EDIT - it seems to work here, at least it links through to the lottery awards page. Too early to vote yet anyway, but I would like to have it working and in an obvious spot from 31st May to 20th June, when the voting will be live.

EDIT - done! I didn't spot the 'add by html' button (or something like that) in the 'add gadget' menu on Blogger. I tend to assume I'm going to have to scrape together everything I can remember about writing html code every time I want to change something on the blog, but it is usually much easier than that. :-)