Copy the entire ~/Library/Application Support/com.taoeffect.Espionage3 folder over to your iMac and create one empty folder, for example in your Documents folder, for each folder you protected with espionage.
Now launch Espionage, each folder will probably report that the mount point folder is missing.
Click onto the small "i" near the folder name, and on the folder options window, use the mount point drop down menu to point to one of the empty folders.
Once you set it for each folder, they should start to work.
Give it a try and let me know if all fine
Rgds
Zsolt