Put the game in and try it. You don't need to connect to Live, if it sees you don't have the right dashboard it will update it for you.
You don't have to get an answer to something before you try it. If I suggest putting in a Live enabled game, try it, don't wait for an answer to see if that is the right game. If it works it works. If not, try a different game. If none of them work, that probably won't fix the problem.