When being on the download site, scroll down. At the very end, you see how to handle the ISO.
What's the problem ...?

i did that aswell and downloaded mobalivecd to handle the iso file.
But i cant open it .I try to run the liive cd by opening the isofile with the mobalivecd and cannot copy file to destination directory and then it says instalation failed.
And then there is the issue with bios.I try to boot from cd and it cant find the cd.
And to answer the question about how i have burned the file....yes i have burned it as an iso file onto the cd
Hmm, have you ever booted anyother CD. I ask because if you had a good CD creation you should be able to boot. I have never used mobalivecd, so I can't answer about that program. But the live CD was created so one could boot to it, not needing another program. It boots in rather than your windows from the hard disk.
When burning the CD, I assume you saw the checksum burnt was the same as mentioned in the release notes from the page your download the CD.
Since your machine cannot see the CD, I suspect either the boot selection (or BIOS) doesn't allow booting from CD. Or that the burn was bad.
Sorry I can't be more helpful. Every machine (about 5 so far) I've worked on can boot from a CD. Maybe another forum user can assist.