There are some yahoo groups devoted to working on the EZ designs. You could join one of them and ask that question.
The Yahoo Baby Surprise Group is going to be doing a KAL for the rib warmer in a couple(?) of months at the request of one of the members, and I know that I've seen postings from people that have already made one.
In case you wish to sign up for the Baby Surprise Group, the link is http://groups.yahoo.com/group/knitbabysurprise/