I figured out how to use one copy of Radio Userland to publish two weblogs, each on a different community server. I'm using it to publish this weblog and a Salon Blog. Warning: The procedure isn't pretty. Read my how-to article.
Warning: By doing this, it appears that my weblog is not being counted in the Salon Updates and Rankings pages. It looks like publishing over there will require some scripting to ping its community server when I publish.
It looks like the blog title is coming out as 'Workbench' as well.
Your copy of Radio will ping weblogs.com and your default community server (presumably pycs.net) when you update. If you can find a way to change the update URL from http://www.pycs.net/RPC2 to http://rcs.salon.com/RPC2, that should fix it ...