[syslinux] isolinux to create a bootable freebsd disk?

[Matthew Lenz]

I'm using a firewall distro called pfSense its based on monowall but uses 
freebsd.  They have a live cd (installer as well) that will not boot 
properly using an external usb 2.0 drive.  Fedora Core 4 and Debian boot 
just fine using this drive.  I got to thinking and wondered if it might be 
possible to boot pfSense's cd using isolinux instead of BTX.

thoughts?