From the name of it, it sounds like ISOBuster breaks up the iso from an "image" that you can burn to a CD to the actual file structure. You won't be able to put this "exploded" image on a CD and boot from it. There's boot data on a bootable CD (and buried in the iso) that won't make it on there from a simple copy. You *must* burn a new CD using a utility that will burn the iso image to the disc.
A search for "burn iso to cd" on Google yielded the following link:
http://members.home.nl/lsnoek/iso.htm