M.B.
My son's crib sounds similar to yours, the back is a little higher than the front. My husband got it to work. He was able to put both the ends of the tent on the back, and I think just one on the front, it works fine without all 4 on all the corners. If you would like me to take a picture & email it to you to see it better, please let me know.
M.
(I am also a stay at home Mom)