Just got a reply from Frankie and he says:
Originally Posted By: Frankie @ SJ
Hi Kevin,
Yes, the rtmp stream produced by the Flash encoder is reading in a single microphone source. That source is then combined with the video into one stream. The audio is set at the highest rate of 44khz (if not limited by the local pc or sound/mic drivers). Long story short, yes it is mono.

Frank Podlaha
StreetJelly.com


Oh well, I'll see if my vista machine is adequate. I might still have a 1-channel vs. 2-channel issue, so I may have to use my laptop. In any case, I might need to remix my backing tracks so they sound a little better in mono (they aren't that bad now).

I wonder what tricks you use to get separation is mono -- eq and reverb?


Now at bandcamp: Crows Say Vee-Eh @ bandcamp or soundcloud: Kevin @ soundcloud