After much work I was able to get m0n0dev to work. However I'm getting an error at the point of installing the new image onto the box.
The error is:
/etc/rc.initial: /etc/rc.initial.setlanip file not found
This occurs as soon as an option is chosen from the boot options screen before m0n0wall is installed from the image.
I've checked the source director for the image on FreeBSD and both the rc.initial and rc.initial.setlanip files exist.
Has anyone else ran into this problem?
image location is
http://www.activeobjects.net/monowall/m0n0wall-cdrom-myimage.iso in case you want to take a look