I'm trying to find a way to upload the letter to a host and post it here. It may take me a little while.
Steffen could subpoena such information, but not necessarily a news media.
In the computer age, someone could use someone else's computer and email address -- so knowing IP addresses and what workstation/computer inside a network that an email or post originated does not prove anything.
It is wise for Jim Robinson to stay silent on this until any possible legal issues remain.
A good example is the Valerie Plame and the possible involvement of Rove and Libby. Just because some fruitcake newspaper reporter has some story, it is not okay to confirm or deny information about a CIA agent.
Libby and Rove are under intense pressure because of their alleged involvement with a media source.
If there is any possible jeopardy to Free Republic, then Jim Robinson is wise to stay silent.