To celebrate this achievement Microsoft is giving anyone that has been a member since 2002 500 Microsoft points.  The catch is they are not just crediting your account, you have to hit some website and request the points.  I've placed the link to the site below so if you've been a member, like me, since 2002 then register and get your free points.  Expect a few weeks before you actually get credited the points.

https://reg.msgamestudios.com/Default.aspx?site=Xbox360Live5Yr