I've just uploaded Regexp::Parser v0.02 to CPAN; it probably won't appear on your local mirror for a while, but the link above goes to my local copy.

This version has a few fixed bugs, far better documentation, more tests, and better internal behavior. I'm pleased with the current form, and barring any show-stopping bugs someone locates, I'll be starting Regexp::Explain tomorrow, and then Regexp::Perl6 next week.

It's already got one actual user -- Mike Lambert, the author of rebug (which I can't actually find, at the moment). He used YAPE::Regex in a prior version, and now that this is out, he's making the switch.