Hi Tom, thank you for the immediate response. I know now what to do. Another things is if I want to view both of them on the same page because now I need to access them separately. I appreciate if u give me an idea how to link those two, for example, like showing both of them within the top_menu section. I tried to read the source code to modify it but it gets me nowhere.

I really want to publish how to merge two Address Book script but there are few gotchas. That's why I'm holding off until I upgrade the script. For now, I leave it to people who are willing to dig into the code and figure it out themselves.