You're using Snow Leopard then and the app is called Address Book. So you can type that into Spotlight Search. Also, finding the file path is different in SL compared to Mavericks, when the menu opens with the list, right click on Address Book and then click on show path. (Sorry, can't quite remember now, hope this correct.)Thanks for your reply.
The version I'm using is 10.6.8.
Hope this helps.
Airtime? That's not the name of any Apple product, so I'm not sure what you're referring to.I must have accidentally removed it, I don't recall seeing it anywhere. No I don't have Time Machine running, I tried to install it and it asked for an airtime wifi. I do have wifi, but it would not install. I guess airtime is different, not familiar with it. I'll keep trying, it maybe hidden somewhere. It was not in the trash either. Thanks again.