If the stick is supported, it should be available as sda1 automatically when it is plugged. try this with the stick plugged.

cat /proc/mounts

if you see /dev/sda1 or something like that(assuming you don't have other SCSI devices), it is recognized and can be mounted to any mount point. If you see nothing, it is not supported and there is no way you can have it recognized running from a CD version. Even if you HD install it, you have to grab the linux kernel source and patch it to have your device recognized. Not an easy task.