Welcome to UPSVAC! We are the First and Original UPS Virtual Airline. We have been around for Over 10 years and consider ourselves to be a "Legacy" Virtual Airline. We are established and well known to VATSIM. We take pride in our VA and would like to encourage all of our members to have fun and to enjoy our hobby. If you would like to be a member please sign up, your application will be quickly reviewed and you will be notified as soon as possible of the next steps. http://upsvac.com/upsv2/index.htm
Considering that thousands of flightsim enthusiasts are still using - indeed prefer FS2004 to FSX, it might be an idea to mention which sim(s) you are catering for.
I did have a good look at your otherwise well laid-out web-site but was unable to find a reference. Naturally, I might have missed it. Other than that, the VA looks attractive and gives a no nonsense impression.
Good luck and future success