RDS Encoder(from pcs website) Schematic and Software Problem

Hi
I recently constructed an RDS Encoder using the schematic available on the website.
I have the associated software also up and running..it needs a patch..if someone wants that patch i have it available for free..just email me and ill send it over..
now heres my issue..
i have the hardware setup...i have the softweare running...but i need to TEST if all of it works fine..how do i go about doing it?...the software doesnt seem to do anything...i edit the prog details..select LPT1 and load data and select 'Start Encoding' option...does the encoder output data when i hit 'start encoding'...when and how should I check to see the output? I guess i wanna know how the program works..can somepone tell me?
any help will be appreciated...
thanks!