The easiest and most common way to increase your tgp traffic is to install a traffic trade script and start trading off with other tgp sites. You can also try driving traffic directly to your site by doing up TGP galleries and having your tgp as the main "sponsor". You can buy traffic from a slew of traffic brokers. You can also try linklists but I am afraid I cannot suggest any since I just don't know that field that well.

Cheers,

Luke