Double check to make sure you're logged in. Then, navigate to your Pre-Algebra (3rd Ed) content. At the end of the chapter list is a topic titled "Getting Started". Check that box and click "Apply" at the top left of the page. The last option in the results is the eText. Click on it. If you don't already have a VitalSource Bookshelf account, clicking "Open" in the top right of the page will prompt you to create one. I used my school email, which is a Google account, to login with Google.