That fence has more holes than swiss cheese - lol
Looks like it needs to be re-done or your always going to have issues. Wire needs to be very tight - 3 strand minimum - 4 strand preferred.... Deer won't have a problem jumping it. If your concerned you can create a 'crossing point' for them between a couple of sections of fence by taking the 3rd and 4th row then tying them together with a small piece of fencing wire...
http://t3.gstatic.com/images?q=tbn:A...hvnQqhRumNRNCw