Hello and Welcome dolphinlove-
I use the clicker can be a wonderful tool if used properly. I recommened getting Chet Womach " How to take clicker training to the next level" It a CD and it go over Clicker taining great. And it just doesn't over over clicker it go's over other stuff like bitting, getting your bird to step up, or if you have problem getting your bird to step up out of the cage, stuff like that.
Here the link, take a look at the video on the link that will explan it all and better. Hope this helps, I know bitting can be a big problem.
http://www.birdtricks.com/parrot_training_information.html