Someone just asked this, but I'll give you my take.  The standard way is
C-x-b , then type the buffer name or press enter for the default.  If
you install swbuff (http://www.emacswiki.org/cgi-bin/wiki/SwBuff), then
add the below to your .emacs file, those shortcuts will work.  Tell me
if you need more help:

(require 'swbuff)
(global-set-key [?\C-x left] 'swbuff-switch-to-previous-buffer)
(global-set-key [?\C-x right] 'swbuff-switch-to-next-buffer)

Matthew Flaschen

Logan Lee wrote:
> Logan Lee <10464307@uts.edu.au> writes:
> 
>> C-left or C-right don't work for me. :?
> what I meant was C-x left or C-x right. they don't work.