Wow!!! I can finally receive hotmail.com mail in the Mail app of mac os x!!!
Macfreepops is really useful, even if the user interface is... umm.. weird. It's just not user friendly, but once you get your head around it (it basically needs no interface after all) you can start to receive mail in your account.
The basic think to do is open the MacFreePOPs application and click "Start Server", then open your mail application, create a new account and enter your details plus those that appear at the bottom of MacFreePOPs window. Then check your mail, and it should work. (In Apple's mail, you'll have to take a trip to the "Advanced" tab of account preferences after you've created the account to change the port #).
Enjoy! I sure do!