Help please

Purchased new hard drive  - technician put all data on the "Z" drive. 

I copied the pst files to the "C" drive, Windows Live Mail 2012.

How do I import from the "C" drive to the various places, i.e. documents etc?  

My previous email program was Windows Live Mail. 

Thank you any and all.

M. MacKenzie,

Neophyte pst'r