Has anyone had any success flying AFPD with the JR DSX9 transmitter?

I recently bought AFPD - but without the Dummy USB Commander Transmitter (unfortunately they're not available in Australia).

Howerver, the version I have did come with the USB interface, identical to this one (image courtesy of another poster):




So looking at buying a [link=http://www.modelflight.com.au/jr_rc/jr_9x_v3_x9303_dsm2.htm]JR DXS9[/link] transmitter and start practicing on AFPD before splurging money on a real plane and gear.

Has anyone had any success with this on AFPD?
Is there any additional adapters that I need to buy?

Reason I ask is I've read in [link=http://www.rcuniverse.com/forum/m_8425710/tm.htm]another post[/link] that your transmitter has to be set to PPM mode, and that this is a problem with newer dedicated 2.4Ghz transmitters which use PCM. I actually don't know the difference between PPM/PCM - different way of transmitting the signal I think? Why would that matter if the signal is just going down a wire anyway?

Cheers guys!
(I'm starting out in RC, so please be gentle )