In general it is mounted automaticly.
If not, open a terminal, login as root and type:
Code:
tail -f /var/log/messages
plugin the usb stick
Look a the output in the terminal
You will see something like
Code:
Aug 17 18:11:03 cannabis kernel: [14768.945687] sdc1
then as root
Code:
mount /dev/sdc1 /mnt