Created popular game, can't manage alone. What do I do?

I created a social web-based game in Rails (my first Rails project, actually) and in just a few days it's really taken off. Gaining almost 200 self-proclaimed "addicted" users, and ~60,000 page views, with little promotion.

This has huge potential, but I need to redesign and rewrite the thing from scratch. Several ideas need reworking, and new features desperately need to be added.

I know I can't do this alone in a short enough time, but I don't know anyone who could help.

Does anyone have any suggestions? I'm based in the UK.