If that proves impossible, due to problems with domain ownership etc, then I'd be happy to look into setting up a google group instead, or a better alternative may be a website containing a forum. I set up a website with Cambridge Open Systems for my local club the KNMCC, and there is a 'forum' application available from them. We don't use it in the KNMCC site, but it would be easy to set up in a new site. As long as the website is a not for profit, community based site, the hosting is free too.
It would be a great shame to let this wither on the vine, and I'm sure Mart would have wanted IKBA to continue in some form.