Hi Phil,
Checking those links quickly, IF your panel is identical to the Freetronics, you won't need any driver chips. The Freetronics board has all its driver chips built-in and connects directly to the SPI pins (plus a few others) of the Arduino. The problem you may have is physically connecting the panel to the Arduino - Freetronics provide an adaptor board, but you may have to rig something up with a bit of stripboard and soldering, assuming you can figure out all the necessary connections.
Looking at the schematic for the Freetronics adaptor board here, I'm confused. Most of it makes sense, except the connections "C", "G" and "D". These are apparently shown connecting to outputs C, G and D on the Arduino - but there are no such connections!
Paul