You can find a list of your competitions and awards
here. It looks like you did not take the Website Award, though it doesn't seem to show the Excellence Award on these pages after checking ours, so you might try contacting FIRST about this specific award. I suppose this makes my post less of an immediate answer and more of a "for future reference" kind of answer, though... If someone else knows of a place you can check the Excellence Award, please chime in, but in the mean time, I hope this helps
By the way, I got to this page by looking your team up on The Blue Alliance and clicking the more info button. Like I said though, I can't seem to find a place that lists the Excellence Award anywere