Question regarding dualbooting multiple live distros on USB

[desperado618]

I would like to dual boot ( and perhaps triple boot) live distros. For arguments sake lets assume I would like to triple boot Backtrack3, DSL, and an XP Live distro. Since Backtrack has a USB installer, im quessing I can create 3 primary partitions, install backtrack to partition 1 and set it to active.
Im not sure what to do next however. I do know that at some point in time I will have to manually edit the backtrack bootloader but do I just simply copy the other live ISO's to their respective partitions?

Any information regarding multi-booting live distros would be greatly appreciated. I found many link that provide dual booting assistance for Live and HD Os' but that is not helpful in my situation.


Thanks in advance

[saikee]

As one can put one distro in a CD so one can also put 7 distros in a DVD (http://www.justlinux.com/forum/showthread.php?t=150078).

As one can put 7 distros in a DVD surely one can copy the content of it into a USB pen drive and alter the CD-based boot loader to Grub. I got 3 booted successfully without changing anything in the distros.

The above is to boot each distro and run it similar to a Live CD (no setting saved, source system files are read-only).

If you install the distros properly, as a normal installation, then a USB disk is just like any other hard disk. Took me a weekend to install 12 systems into a USB external hard disk (http://www.justlinux.com/forum/showthread.php?t=148499).

So just pick the distros and pick the method of installation.