Working with Electronic Brick RFID

I recently bought an Electronics Brick RFID reader ( http://www.seeedstudio.com/depot/electronic-brick-125khz-rfid-card-reader-p-702.html - in "W" mode) with necessary RFID tags, wire & of course the Electronics Brick Shield V4.0 Pro (in IIC mode). Now, the RFID reader glows a happy red, and blinks green when I wave a RFID tag over it, so I know the hardware works... The problem is... how do I get the data out?

On Seed's site, they've got demo code ( http://www.seeedstudio.com/depot/demo/RFID_Wiegand_INT.zip ) which I tried, and it doesn't seem to work. I also found a post here ( http://www.arduino.cc/cgi-bin/yabb2/YaBB.pl?num=1248988301 ) for the similar unit with simple code... which I've tried... to no avail. I even took it and (manually) iterated through all the digital pins to make sure it just wasn't somewhere else.

I'm totally at a loss as to what to do now (and yes, I've googled and googled). Has anyone use this hardware setup? Does anyone have some example code they know that works? Or perhaps I've got something setup wrong somehow?

Thanks