where can I find "how to replace radiator info. 2nd Q... heater stopped working

nothing there tells me what I need to know... why bother sending it?

Because it has a lot of information for people who want something FREE. If that didn't help you, I'm sorry. You might try youtube, or use the find a shop to find someone in your area. I have programs that show me everything, and I have to pay a pretty penny to have them as well, so what do you expect.