Replying to Tips for mounting Pivots.

Yo sorry for another dumb thread, but I'm really itching to use my new skis on the summer setup. I got them with Pivots, and I've been told that you can't adjust boot size, so I REALLY don't wanna screw this up and ruin my new skis. I've mounted skis one time before, but even then it was really sketchy, the bindings were somewhat crooked and a screw came out when I was skiing. My Main concern is keeping the toe and heel piece aligned. Drop your tips below, because I really don't want to screw this up.