Sorry, I am at a loss!
I used RH 7.2 and that came on 2 CDs.
I had a few problems with VPC recognizing CDs in this and other installs.
But I was always able to get around the problems by ejecting and reinserting the CD several times.
I don'tt know what to suggest other than:
1) get a hold of RH 7.2 and use it
2) Install RH 8 & CFMX on a real PC
It is important to remember that the version of Linux is not really important, except that it must be recognized by the CFMX installer as a supported version -- we aren't going to use the Linux for anything other that a base from which to port the installed CFMX Directories.
Sorry I can't be of more help!