These instructions apply to both Linux and Windows users.

First you will need to visit to Flash Linux download area at SourceForge.net.
Download the files "flashlinux-0.3.4-RC2.iso-part*" to your computer.

For Linux users only, you can achieve some additional security by doing;

Download the file "flashlinux-0.3.4-RC2.iso.md5" to your computer.
Make sure the .md5 file is stored in the same directory.
In a terminal session type;

LINUX USERS

cat flashlinux-0.3.4-RC2.iso-part1 flashlinux-0.3.4-RC2.iso-part2 flashlinux-0.3.4-RC2.iso-part3 > flashlinux-0.3.4-RC2.iso

md5sum -c flashlinux-0.3.4-RC2.iso.md5

the computer should respond with;

flashlinux-0.3.4-RC2.iso: OK

you can double check md5 sum's here if you really want to.

WINDOWS USERS

Windows users find that they won't have a "cat" command unless they use cygwin.
"mattseddon" reports however that this should work; (thanks Matt!)

copy /B flashlinux-0.3.4-RC2.iso-part1+flashlinux-0.3.4-RC2.iso-part2+flashlinux-0.3.4-RC2.iso-part3 /B flashlinux-0.3.4-RC2.iso

You now have an ISO image of the installation / Live CD. Next we need to "burn" this image to a CD-ROM or CD-RW.

There are many ways of doing this, so we'll pick a method using a Linux application called XCDRoast.

Run XCDRoast as "root" and click on the Setup button.
Click on HD Settings and add the path to your newly downloaded Flash Linux ISO
Click Ok, then Create CD
Now click on Write tracks
In the right hand pane, select your FlashLinux .ISO file and then Accept track layout

IF you are using a CD-RW, click on Blank CD-RW

Now click on Write tracks at the bottom of the screen

Once this operation complete, you should have a Flash Linux CD that's ready to roll ..