It's very possible that you are amongst the first from your school to use the system, create your profile, and update your Questionnaire. Allow a few days for other users to do the same - once more users populate, you'll start to see Matches appear!
If there are many other users on your MCR platform, you may have just edited or completed your Questionnaire. After saving your Questionnaire, please give the system 10-15 minutes to calculate the match scores between you and all other users, before Matches will display.
If it has been a while (over a week) since your school launched My College Roomie and you still don't see Matches, send us a ticket though the Support tab!