Raptr is a social utility that tracks your gaming activity and allows you to chat across all major IM networks in one buddy list, including AIM, Yahoo, MSN, GTalk, Xfire, ICQ, Facebook and Xbox Live.
Phew, glad your gamertag is showing now ;) Thanks for checking Raptr out!
According to the FAQ:
I just added my Xbox Live account information, how long does it take before it shows up?
We strive to have some activity in your profile within about 24 hours, as long as you've correctly entered your Xbox Live gamertag into your account settings, and your Xbox Live gamertag profile is set to 'public' on live.xbox.com. Usually gameplay sessions (presence) will show in the Raptrcard (in the upper right corner of your profile) and your activity feeds first. The Xbox Live gamer card, along with games and achievements being added to your account, will follow a short time later. The larger the number of achievements on your account, the longer it will take to process and add to your Raptr profile. Once the initial sync is complete, updates should occur much faster.
Why hasn’t my Xbox Live information (gamer card, achievements, etc.) shown up on my profile?
There are a few reasons this might happen, first make sure that your gamertag is entered correctly into the Identities section of your Account Settings page. If your gamertag has spaces, use spaces when you enter it on the Raptr site. To test this, visit http://live.xbox.com/member/xxxx (replace xxxx with your gamertag as entered on Raptr)
If you can view your profile and gamercard, you are using the correct ID. Xbox Live now has privacy settings for your profile. If your profile is set to 'private' we won't be able to retrieve any of your gamertag data.
Great group you got there (supposing that is the picture of your group...)!