Off the top if my head, I don't know what freeware programs under Windoze will burn a . iso to a CD. If you're on XP, try right-clicking on the . iso file, there may be something in the context menu to burn it (I run Win2k. )
Personally, I run SuSE, and have been for several years. May have to consider a new distro as Novell bought them up and is now doing deals with the Devil in Redmond.