[CentOS] Kernel panic installing CentOS 5.2 in Parallels on iMac

Fri Sep 5 00:32:09 UTC 2008
Bart Schaefer <barton.schaefer at gmail.com>

I'm unable to get much past the "boot:" prompt in the installer.  The
panic appears to be in powernowk8_init which according to
http://rhn.redhat.com/errata/RHSA-2008-0612.html has a recently-fixed
null-pointer dereference.  That errata is from August 4; the latest
CentOS install ISOs are from June.

I tried the agp=off suggestion from e.g.
http://www.centos.org/modules/newbb/viewtopic.php?topic_id=13512 with
no success.

Is there a good way to proceed here?  Will there be new install media
with the more recent kernel?