I agree with AMC258: the forum is _very_ hard to find if you want it to be actively used by visitors. Because I knew it should be somewhere, I was able to locate it. The occasional visitor will not find it.
I understand the trouble of 'starting up' your site, though. I do have my own site, which took me quite some time to construct and the amount of visitors is still low. No problem though, as it is not really meant to be a big hit: it's a hobby and getting more hits is something for the future. I do have forumsoftware installed on my site, but I don't expect it will ever become really active (small targetaudience).