server behind router = no local access; need BIND?

Hello I've just installed Vonage and the Motorola VOIP router that comes with it. My server is behind this router, as are all my other computers. The world can see my virtual hosts, since the DNS is handled by my IP, which points to 206.55.250.10. I'm no longer running OS X Server, But Webstar V, however that should make no difference to this question. So, www.linksware.com is a virtual site, and the world can type in 'linksware.com' and get delivered to the correct page. tracyvalleau.com is my default site. The world can type in tracyvalleau.com and get to the right page. However, I cannot. My computer is behind the Motorola router, and the best I can do is type in 192.168.102.2, and get to my default site. I have no way at all of reaching linksware.com from my own computer. I Thought that if I enabled BIND on OS 10.3.4, that Webstar would be able to use that to do translations behind the router, so that using my working machine, (192.168.102.3) I could type into my broswer "www.linksware.com" and get my linksware page, and 'www.tracyvalleau.com' and get my main site, just as the rest of the world can. Question: is that correct? Question 2: is anyone interested in telling me exactly how to do this? (I've got BIND up and running; and have DNS helper. I'm not afraid of the terminal either... OR... am I just SOL? TIA