Haven't been for a while, so I don't know if this has already been covered, but I find that Standoff has very low tolerance for making contact with the CIC server. I scored (BTW, this is the first time I've tried the simulator with the score upload facility) 380 and 500 points using the Ferret on the Confed gauntlet, but the scores didn't seem to get transmitted because I was downloading something else at the same time (I'm still on dial-up). Now, I know they're fairly mediocre scores, but they are still my scores.
I did a quick 50-point run while nothing else was being transferred, and only then did I get my first score. Now I have the dubious honour of being last on the scoreboard. :/