If you aren't tottally in love with Ikonboard there is a converter for Ikonboard to phpbb 2.0. Then you would have to run the convertor for phpbb 2.0 to phpbbport and yea I am sure it wouldn't be a tottally smooth process. But you could have a nuke integrated forum much faster that way then waiting for someone to port ikonboard?
Just a thought.
I found a thread that discusses this
here