You need to market your site to gambler's! One of the best way I can suggest is to use this forum, first by making a announcement thread, secondly dig deep in your pocket and hire a campaign manager, give him a fix budget, no of users, no of posts and one mandatory Ann post. You could even pay your signature holder in your site, so you'll have a good number of people coming to your site. Then go to the games and round and place a huge contest as it's year end you'll find good traffic coming to your site.