(don't type $ or #, those are prompts)
$ su - root
# vi /etc/X11/xorg.conf
with the arrows, go to the 'device' section.
Change the driver to 'vesa' (put the cursor on the first letter of the word that is to be changed and type 'cw' (without the quote), then type 'vesa' and hit the esc key
type ':wq' (without the quotes) to save the file and quit
run the startx command.
This will give you the GUI.
For the USB, insert the USB and type dmesg to find which device it uses.
Then mount with the mount command.