yes it is! Its not usualy a scripting thing to do thismuch parsing. (he was asking how to get it eworking in 6, it will work in six by getting the 6.01 version form pixar)
Its not my fault he thinks a script can make a plug form older versions work in a new maya. I never will.
Besides the making of a rib is only one of the things it gives you acces to.