Messages

I've just reinstalled my osx 10.6.8 and a select few programs that I really need. One of which is Espionage which keeps my MAIL folder ie. USERS/..LIBRARY/Mail locked when not in use. Now I cannot get it open. I've replaced the MAIL folder from my time machine backup as well as all the application settings for Espionage but I'm lost because I get a critical alert from Espionage saying it cannot find the folder. What am I neglecting to reinstall from my time machine backup that would let me open these folders?

Thanks,
S