The current plugin doesn't work on Blender 2.43; which everyone should now be running.
Almlys has basically said that he hopes to get enough free time over the summer to rewrite major parts of the plugin; but I don't want to wait that long.
IMO, the current plugin is such a mess now that there is no hope of fixing it.
So, I'm either going to stay frustrated until August; or write my own plugin
I haven't done any work on the Snow Age recently, mainly because of the plugin issues; but I've been building a cool little scene in Blender (non-Uru related). I'll post pics when it's done.