Well, I'm putting some love into v0.7 right now, so far I have added the ability to change the frequency of what you want to feed into the sitemap (
info).
I also have the SEO working for URLs, as well as I have the URL change that occoured in 7.5 or so fixed (with a simple tick to the ubbver as 2) so the SEO urls will be properly fed.
Going to take and look through the code to see what else I can fix/clean before releasing a new update (you fan find more information
here.
So far the old indexes are still in the script, I haven't played with them much at all though.