Start here.
You will create a job, add a step, and put the SP call in the job step. Then create a schedule for the job. The link I provided will walk you through it. Books On Line (BOL) is your friend for things like this.
Jack Corbett
Consultant - Straight Path Solutions
Check out these links on how to get faster and more accurate answers:
Forum Etiquette: How to post data/code on a forum to get the best help
Need an Answer? Actually, No ... You Need a Question