Here is a step by step tutorial on how to post to a weblog hosted on Salon's Radio Community Server, using Salon's theme, from a regular copy of Radio, as opposed as the Radio for Salon version.
This is a short extract:
What I am about to expose worked for me.
It will eventually work for you, though I will certainly not guarantee it, nor will I consider myself responsible if you mess up your Radio installation.
If you are experiencing problems, contact me through the feedback link on s l a m's home page.
Please do not bug UserLand with any problem related to this hack, they have better fish to fry.
If you elect to live dangerously, I hope you'll find my explanations clear enough. I think this kind of document makes a good case for the use of outlines in online Web tutorials.