I have developed a new include library for the nRF24L01 chips. I haven’t tested it exhaustively, but every function has at least had some testing. Feel free to modify it to suit your needs. You will have to set up your own SPI code, though (my code depends on an SPI send function that must be provided by you - this is outlined in the .h file). This code was tested on a Philips LPC2148 chip, but I tried to make it as platform-independent as possible.
[nrf24l01.c](http://filebox.vt.edu/users/stball1/code/nrf24l01.c)](http://filebox.vt.edu/users/stball1/code/nrf24l01.h)