how to import private key in GnuPG4Win 1.1.3

My compagny recently went from Windows XP PC’s to new PC’s with Windows 7.
I had GnuPG4Win 1.1.3 installed on the XP PC. We use it to generate keys to encrypt a database build by our webdevelopers.
I reinstalled the same version on the Win7 PC but cannot find out how to import my private key into GPA.
Any help would be appreciated.