Collect some money from the other moderators and buy a domain. Then you can get money from ads. Go visit some hacker communities and they'll give you links to firms who pay regardless of the visitor number. With the money you'll pay your domain taxes and might even get money for some better forum software. As your visitors increase your ads will be more expensive. Got it?
And to get more visitors build more than a forums page. Get an index with news and links to gallery, downloads, forums, contact, etc. And advertise at moddb as the people say.