I installed meeting maker version 7.5 on my system (Gentoo (2.6.8.1 kernel) with reiserfs, udev, xorg, 1600x1800 desktop).
I installed it as "unsupported software", of course.
The install process had some brief (and I mean momentary) artifacts at the start, but the install completed without incident.
After installing, I ran it; set the timezone, set the server and off it went. It seems to work very well. I can send/receive meeting notices, edit my calendar, do invites, etc.
I haven't done a comprehensive test of all of the features in meeting maker 7.5, but the functions I have used so far are working 100%.
Be well.
Geoffrey