The website looks fine but you will struggle to get people to sign up. May I suggest:

- Paid advertising, whether it be banners or whatever, you will need to pay to advertise the website to generate enough leads. Bundlehunt or whatever it is called advertised all over the place including cssmania.com.

- Try to approach sponsors prior to opening next time. Try some of the tech-websites. Send a formal, well written email talking about the website and the amount of advertising you will be doing. They may add in some free stuff eg a WordPress theme from Themeforest to the prize.

Otherwise you will need to catch some luck as you need a few people to get the ball rolling.