YES! The ai version opened perfectly. The missing font is a version of Tekton, which I can substitute.
I'll check the .cdr version to see if it opens okay, too. I don't use Corel as a rule, but I'm sure I'll be getting other files from this customer so I might have to break down and familiarize myself with it a bit.
Thanks to all who helped. The folks on this forum are a priceless resource.