I didn't read closely enough to see the version you have uses different pin designations than the kind I have. Perhaps this link will be more helpful:
https://forum.sparkfun.com/viewtopic.php?t=14210
Both operate more or less the same way, differing only in how the I/O pins are controlled. Until now, I didn't realize the nRF2401A and nRF24L01 had different interface signals.
If you can't get your modules to work, I would really like to suggest getting the newer nRF24L01 modules. They can be found for $1.50 to $2.00 -- far cheaper than the sparkfun modules -- either on eBay or aliexpress.com or electrodragon.com. I can vouch for reliability buying from any of those sources, having used them all several times. It might take a couple weeks to get the modules but for me it is worth it to save lots of money.