I forgot to mention that you should backup your drivers.manifest.txt files before you start hacking them. The sections in these files are laid out in Java/C looking fashion. A section will look like this:
"Driver Name" = {
class = network,
selected = 0,
drivers = ({
path = "Driver Name\\DRIVERXXX.INF",
os = ("VISTA" "2003" "XP")
})
},
Each section is separated by a comma ",". Don't forget to remove any extra commas between sections, or the end of the list if that's where the driver showed up. Ensure all the open brackets have a matching close bracket. If you mess it up, at least you can restore the old file back.