That's actually quite old, just a new minor update for it. Still, it's great and very much worth playing.
You might also want to look at Wing Commander Standoff, at http://standoff.solsector.net/
It's a fanmade game built on the Prophecy Secret Ops engine, set between WC2 and WC3, with a lot of great classic ships, and it very much has that classic Wing Commander feel to it. IMO one of the best fan made games I've ever seen.