Installation: 
1) The folder "tell_a_friend" in the "infusion" completely upload. 
2) Then on the side with a super admin account. 
3) Now on Admin area => System Admin => click infusion. 
4) There 'Tell-A-Friend "on the text box and select" Install "button. 
5) Now on infusion => Tell-A-Friend and click Settings in the Preferences. 

Notice: 
Site url at the address with http:// specify ALWAYS!
