The 'edit tags' link seems hideously broken, at least on Firefox 2.
When I click it, it creates a text input box at the bottom margin of the browser window, but only the top portion of the box is visible, and there are no controls or labels visible. I can't scroll the area that includes this box, and if I try to resize the browser window to make more of it visible, it promptly vanishes.
Meanwhile, as I edit this post, I clicked on 'Select Tags...', and this created a pseudo-pop-up box with black text on a midnight-blue background, which is a bit too unreadable for my poor human vision.
[editing in FF 2.0.6] img taken