I also have UV-mapper-pro and it's one of my most usefull tools, Steve pops up now and then in the forum so he's still around.
Daz made a smarter mesh for V4 with a lower polygon-count, in my opinion the bends of the knees and elbows are better than V3, but the armpits are still too high.
You can use the free daz-studio to see how V4 (basic is also free, without the morphs) works.

regards,

Thijs

-How can you improve things when you don't make mistakes?