How to get msn on my blackberry curve 8520?

Ok I also had this problem with my blackberry (curve 8320). Firstly you need to make sure you have signal (of course) then make sure you have your WAP internet setup properly. If it does not work after that your best bet would be to contact your network provider and make sure they have sent you the correct settings for your phone (I had to do this) If you are with o2 they call it the blackberry bolt on (its free). Hope this helps