I'm assuming it is this one:
http://www.jmrth.com/en/images/proimages/RXB6_en_v3.pdf
as it appears to match the photos and the signal names are the same. The original part is an eagle to Fritzing conversion from Sparkfun so either the original part has offset pins or the conversion process had some bugs 
. While the 8 pins are on the PCB only about 5 of them show as connectors in schematic and breadboard. This one appears to be straight sip on .1 centers so I corrected the PCB svg to match that. I'm currently fighting with the fpz (and as usual its winning so far ). Good practice for me!
Peter Van Epp