2. When you click on the link, you will see the CGX 2.0 sign in page. Because you don’t have a CGX account, you have to click on Sign in with a different account. 

You have to type the email address you were invited with and follow the instructions of the screen to write your password, after which you’ll land on the site you’ve been invited to:

Note: To go back to the site, you can go straight to the site address, or go to sign in via http://sites.cgxchange.org and choose ‘Sign in with a different account’