- last post: 01.01.0001 12:00 AM PDT
Its very simple really!
You click "link my gamertag" which you did, only once at xbox.com at the top right hand corner, click "sign in". It will recognise you havent already signed up so will redirect you to sign up. Fill out all the information (it asks you for a gamertag, i put in a random name its fine!)
Then once done, come back to bungie.net, making sure your bungie username is your gamertag. Then log in here, and click "profile customization" and then "personal information"
You should then be on a page where you can choose to "show" the bungie.net in your gamertag background on xbox live!
hope this helped, if you need more info contact me.