For some reason, WRT54GL's TomatoRaf, I returned to the original firmware. Its web interface of new firmware have a little different from when its first look two years ago.
Firmware upgrade (I said "downgrade"), is very easy, but be careful not to interrupt the router or do not "close the browser". You can see simplified step by step here:
It's so easy to make your AP+Router WRT54GL (default firmware linksys) as bandwidth limiter, you can try firmware TomatoRAF (tomato victek, wikipedia, based on Tomato standard). So don't be affraid you brick your router as long as you follow the right instructions.