Hi JK,
Thanks for the post. With your current hardware, you would unfortunately not be able to run the example using LabVIEW Communications. With FlexRIO, LabVIEW Communications only supports the newest, large Kintex 7 FPGA targets - the FlexRIO 7975R and 7976R. It also only currently supports the newest baseband FAM, the NI 5782.
What type of application are you working on? Have you been working in LabVIEW Communications, or are you just evaluating? Feel free to private message me if you want to follow up directly.
Also, the the 1.1 service pack recently release - I would highly recommend the update as it will include bug and stability improvements: http://www.ni.com/labview-communications/ and then "Download the Evaluation" will take you there.
Thanks!
Rahul B.