Well, I was planning on simply unpacking the .tar.gz into the root. Anyway, I've put an item into our internal task management system. It should eventually percolate back out again, and we'll discuss what we're going to do at that point.
If you can figure out what it is you _want_ us to do by then -- and don't make it too complicated -- it might get implemented.
And, yes, there's probably some bugs in the upgrader. I'll re-read this post when I'm sober, and see if I can figure out what you're talking about

.
Roger - not necessarily speaking for empeg