As the Senderyou will need to receive an Email from the Recipient with his Public Key. See Here
Then Click 2 - Public Encrypt File. This form will pop up:
When you press Continue, you will be back on the mainscreen of Away RJN Cryptograhy and you can select up to 5 files that will be Publically Encrypted and attached to an Email to the Recipient:

A Session Key has been created and the Special Publically Encrypted file has been attached. All you need to do now is click "Send"

The files in your Special Folder are intact. If they were encrypted before, they still are.