To start an ApplyWeb application form, you will first need to create an account. Once you've gone through the account creation process and activated the account by verifying your email address, you will be able to start an application on your account. Return to the website of the school you wish to apply to and follow their directions to reach their online application menu. From there you can log into the appropriate application with your ApplyWeb credentials. After you've logged into the application it will be saved on your account, and you can return to it at any time by logging into ApplyWeb:
How To Start An Application
ApplyWeb Technical Support