I recently spoke with a new buyer who was frustrated when she searched a neighborhood on different websites. She said "They all have the same houses...why is that?" The answer, of course, was "Because those are the ones that are for sale!". I think you're experiencing something similar, you're not finding recent sales, because there have not been any, or at least very few. I researched that neighborhood, Linkhorn Crest, and found that there were 3 sales in 2008, none so far in 2009. There are 7 active listings right now.
In this price range in Northern Virginia Beach, there are 161 active listings...approximately 10 sales occur each month. Too many homes for sale...not enough buyers to purchase them all.