There are two options i guess for this.
They make CV boots that you can put the boot on without pulling the axle out. Its a boot that is in two peices that you have to put on, then glue together with there handy super glue...
I have delt with them befor, but they seem very cheezy and dont hold well. Its more of temp fix that you can do on the spot.
Or you can pull your axle out and put a new boot on. The job isnt really that hard.
Pretty much pull the tire, hub, spindle nuts...its all in order as you take it apart. Its accutly very simple. Im not to sure how hard it is to pull the accual axle out. Iv done it to more toyotas. Any of them with coils were super easy to do, it was the torsion bars that would fight.
And if my info dosnt look to good, Deffinatly check out Ack's page.
hope that helps
Amilla