Addendum to my #1:
One of my menu.lst entries is
"kernel /boot/isolinux/linux ...".
Well one of klaus2008's instructions is to
"Rename the directory boot/isolinux to boot/syslinux".
But because I'm using grub, I didn't need to do the rename, so my reference to
"/boot/isolinux" in "kernel /boot/isolinux/linux ..." IS correct.