As a non member you can use the site to apply for as many jobs as you wish.
In each job posting you will see contact information so you can contact the employer directly via eamil, fax, and/or us mail. Most employers accept applictions via email.
The "apply online" button that you see on all the application pages are for the members of the site. If you click on the "apply online" button you will be directed to the member login area.