Hi FgOWnZ!
I'm Ray, and I'm the Pilots Resource Officer at Atlas.
http://fgtracker.ahven.eu/modules/fgtracker/ is indeed the tracker, but one must also be sure to set the multiplayer server settings so that you use a server being tracked. You probably already know this part, but it could help someone else so...
Where you put in your callsign, there is the Multiplayer box, and you want to enter a tracked server like " mpserver01.flightgear.org " . Some of the servers are not tracked, for instance 02, 06 and 12 are posted at the flightgear wiki page for Multiplayer
http://wiki.flightgear.org/Multiplayer as not being tracked.
Other servers may not be tracked as well, so I sometimes test that I am being tracked by loading sim, and then going to
http://fgtracker.ahven.eu/modules/fgtracker/ put in my callsign and look down the page to see if it is tracking my current position, before I start a flight.
The owner of the tracker, callsign ahven has worked hard this last year to get his system stable, and so far these last couple months he has re-instated the sight at this new URL address, has new hardware, and new software running to improve the service.
And like Andy Kyokoyama said, if you don't have tracking info because the trackers are down, enter "no tracker" in the box. I'll know when the tracker is down because it will be down for me too.
I invite you to join the Atlas forum, a link appears when you log into the Atlas site right where the site log in link is placed.
Glad to have you aboard, look forward to flying with you.
Ray
The only thing I am missing at tracker is the TOP 100!
Ray St. Marie