Transmission

I take it back, I am now having some weird issues.
the RPC URL is not accessible and is throwing up "Your request had an invalid session-id header." messages, even when connecting directly to it (no proxy involved). I am at a loss.

Must have been something else in my Apache config causing a conflict.
With RPC Auth disabled in transmission-daemon, this is all I needed to get Transmission working via proxy:

ProxyRequests Off
<Proxy *>
Order Allow,Deny
Allow from all
</Proxy>

ProxyPass /transmission http://localhost:9091 ...

I had successfully been using transmission-daemon via Apache reverse proxy in the past, but on my most recent setup & configuration, I am running into problems.
I am running transmission-daemon 2.33 (12565) on a headless Ubuntu Server 11.10 box. I'm running Apache 2.2.20, and successfully proxying ...