Bonnie,
Different companies have different requirements. Inquire at a computer shop about downloading. You might find it easier than you think. In the meantime, apply with other companies. Companies are as individual as people are. Some run with the crowd and some do their own thing. Once they know you are doing a good job, they will give you more assignments. Don't settle with just one company because they might not have many jobs in your area, or you might have a lot of competition from other local shoppers. Sign up with as many as you can. There are several lists on the Internet.