Question
how do i propagation a dryed mango seed i have several i have saved from florida. I live up north now where it gets cold and snows

Answer
Marlene,
Thanx for your question.  Mango seeds are only viable for a few weeks and the drier they become, the more likely the embryo has been destroyed. Mango seeds should be planted soon after they are extracted from the fruit.  I doubt if your seeds are viable but you can try anyway.  

Here is a link to instructions for growing mango from seed.  You will see other references you can look at too.  I hope this helps.
Tom

http://www.youtube.com/watch?v=2xiC2PVBACQ