Tell HN: Developers please don't do anything weird on log in pages

I have a uservoice account, where I administer the help site for Windy Citizen. Today, I decided I wanted to sign in to check/update the settings I have on it. I click the "sign in" button on the uservoice front page and get this:

http://uservoice.com/signin

It's asking me for an e-mail and a username. Nowhere does it ask me for a password.

I've been thinking about this form for about 5 minutes, and I'm still not 100% sure how I'm supposed to use it. Do I enter in one? The other? I've been clicking around trying to find a password field somewhere so I can log into the account I set up.

Developers, please don't screw with stuff like this.