both work fine for me. what browser are you using?

Firefox 9.0.1.

(Just to clarify, the site works perfectly fine for me; and the bookmarklet does appear on upon the site; but when the iframes start loading HappyCog, they refresh the page, which sends it back to its original state.)

Try adding void(0) to the end of the bookmarklet.

Doesn't help.

I'm surprised that I'm the only one who seems to have this problem, but I have found at least one possible cause: there is a linked script file /j/functions.js?2011030 which contains, among other things:

    if (top != self) {
        top.location.replace(self.location.href);
    }

So it really does seem to have a break-out-of-iframes script, unless I am misreading what this code is meant to do.