Barbara,
When you print a script from Amazing Charts, it puts the URL at the bottom, I guess for advertising. This makes it one step easier to finding the site and downloading the program. IMHO, there should be a proof that one is a provider before being able to download the program.
We don't put DEA numbers on it either, although we do have them on CII scripts. They aren't really needed. But, there are many sites out there where anyone can look up DEA numbers. Faxing is still the way to go.
I don't like the online services because 1) they are not easy to navigate (at least they weren't), 2) double entries and, thus, time consuming and error producing, and 3) fairly costly.