Bassam explains on his website:
I suppose I should explain. 1.0 is the old dude I originally posted on the elephants dream website. Should work fine on blender 2.45, but check and report. Mancandy 2.0 is my current â€œblessedâ€ version, works on blender 2.45. 2.1 is an interim release, made to remain compatible with blender SVN (for those who like the bleeding edge)
Have fun kiddies.
A big thank you for sharing your knowledge and time with all of us. I know I've learned a lot by taking apart Bassam's creations. Make sure to visit his site or the Blenderartist thread about the release to thank him.