Yeah, the Captcha is hard to see and we could use better ones. Referring login problem, could you send details to our support email here: email@example.com? Thanks!
I'd love to see this alpha, but the login system for the website plain doesn't work, and the captcha images are some of the worst I've ever used. Of course I have no doubt that an e-mail to support would address this, but I think I'll wait until it's actually out as I suspect it has something to do with that anyway.