Enter the Webstore. Most people will make Personal Purchases. This is also where you access free software provided by the University.
Select "Shop Personal Purchases"
Check the green box on the left within the Webstore.
If it says "Login: You are a Guest", click there to log in.
If you are not currently authenticated in that browser session, you may be asked to select your campus. Select your campus as appropriate, then choose the "Select" button.