First - create your account at www.withyouwithme.com
Second - complete your aptitude testing.
Third - register for your courses and complete them as soon as you can.
You can apply for a job without having completed your courses but you set yourself up better for success if your courses are completed.
Fourth - Login to www.withyouwithme.com.
Your profile page will propose a number of jobs you might suit for based on your aptitude testing and courses completed. Simply click on the tile for a job that interests you and you will be taken through the process of applying for a role.