Well, N-Sided Software has been out of business since 2010. All the technology has been bought up by Dassault Systems. The guy behind Quidam (Pierre Bretagnolle) was one of the original designers of the Amapi software, and is now a freelancer, according to his Linked In profile. Quidam was cool software, so it's a shame. You should try out Make Human, or if you use Blender then there's also a great plugin from http://www.manuelbastioni.com/manuellab.php