Wanted: Beta Tester Pool !

I wish to setup a small group of active beta testers, for new versions of OSTC Planner.
I need help to test new versions of the software, to have reports of new (or continuing) bugs, do spelling corrections, to update documentations, etc.
I already have a handful of volunteers for translations. The idea is to setup a mailing list for the group, so we can organize testing and translations of new versions more fluidly.
Email me if you are interested to participate, and point out your expertise (mac, PC, doc, etc.).