I agree... I'm not sure what the hold up is for sending rejections. Last year I didn't get my rejection from U of A until mid May. So potentially prepare for a longer wait, but it is very frustrating.
I'm in the same boat.. I feel bad as well but I once had a prof told me never to feel bad because it's a huge part of their job. I would suggest popping in to see them to freshen their memory of who you are and updating them on what you have been up to since you graduated. That same prof also told me she has written people letters who have been out of school 5+ years, just no more than 10.. so I think you are still good!
Last year I got an acknowledgement email from Western on February 16 but not this year! Since I already have a login I can see my application status as well, On April 1 at exactly 12:00am they update your status on your student centre.
When I visited U of A last year a student in the program told me they expect you to be in the top 50th percentile in all three areas. (This isn't official but I have also been hinted at that GRE scores are low on the priority list for application success)