In 2011, I lost my main hard drive and all of the data on it.  Although I had a backup, I was unable to locate it.  Well now I have.  I'd like to import all of the storage folders into the current incarnation of Windows Live Mail (2012) I now have installed on my computer.  I should say that at that time, all of my email accounts used pop rather than imap, and all of the messages were deleted from the server after they downloaded. All of the messages were sorted into various local storage folders using rules I created to do that. 

Is there a tutorial somewhere about how I can import these folders?