My custom form is not appearing on my website pages. Can you help me figure out why?

The Preview Mode is On.

I have not subscribed to the list yet, so it should be showing for me as a "prospective" right, and not "already subscribed"? Which means the forms should be still showing on my computer?

I have cleared my cookies/cache.

I use the latest Firefox (11.0). I also tried to view the page with Explorer, but it's still not showing up.

I have inserted the code as a widget in my theme.

What have I missed here?

There should be a form in the right column, one at the bottom of each page, and one in the middle of this subscribe page: