many thanks for your reply.
i have tried the methods described at
http://www.damnsmalllinux.org/wiki/install_to_usb_from_within_linux.html#Method_II:_Current_ISO_.2B_Syslinux
but with no success. Method one booted but generated a kernal panic, 2 and 3 would not boot, and i am afraid i have to say that method 4 completely lost me.
I feel i may have to give up on this until i have learned a lot more.
On most other distros i have tried, i have been able to download an iso of the distro in question and then just simply use the dd command to make a bootable usb. Does such an image exist for DSL? (i have tried all images i can find and none seem to work in this way).