most of the above
1.. you mean an ISO file I hope
2.. you burn it to cd as an image, you should have that option in your cd writing software, in most apllications just use the copy disk option and then select to make the disk from an image file, then select the ISO file from wherever it is on your HD (in Nero you have to select the ISO filetype since Nero chooses to load it`s own filetype by default).
3.. not all PC`s will boot from the CD drive if a bootable CD is inserted, although many do, if your`s won`t then you need to go into the BIOS (something like pressing "del" during early boot) then find the boot sequence option (DON`T play with any other settings), and set the CD drive to boot first, then reboot with the cd in the drive.
you will most likley need to do both steps 2 and 3, although many PC`s come with a system restore CD and so the CD drive will often boot before the HD anyway so that it can find the CD automaticaly if you need to repair the system.
Do parachute manufacturers have a refunds policy?