Hi!

Why don't you take free Webspace and install your own Forum Software?

I would suggest Freedom2Surf as your Webspace.
You get 20 MB, unlimited Traffic, PHP4, MySQL, your own cgis, NO ADS. And the best: it's free.
==> www.freedom2surf.com/free...20home.htm

Then I would take Ikonboard as your Forum Software. It's free too: www.ikonboard.com/
And again NO ADS...