Supercharger pulley replacement

I just had the bottum idler pulley on my super charger seize up and I am not sure of the best way to change. I need to know if there is a way to change it without taking the engine mounts off. I also need to know if I can drive the car without the supercharger running.
Thanks.

What year?

It is a 1997

I Would Like To Know The Answer To That Question Since Yesterday My Sc Belt Broke (which Was Just Replaced In July) I Called The Dealer Since It Is Still Under Warranty And They Asked Me To Bring It In This Morning. They Said I Could Still Drive The Car That It Just Wouldn't Be Supercharged. I Was Hesitant. So I Came To Af. I Trust Your Answers More Than The Dealers. Thanks

Dealers charge out the A** for parts/labor, but they do know their stuff as the dealer's mechanics are trained by the company that built the cars they work on. So you should be fine if the dealer says so. Or at least I'd think so....