You need to get the example sketches working FIRST.
Scroll down through Robins examples to the Connection Test sketch and try that first of all. You need this sketch to work on both devices before attempting to use any other sketches.
The NRF24L01 modules run of 3V3. Do you have an adapter board that drops the 5V down to 3V3?
Which Arduino are you using?
EDIT: Connection Test is post #30 in this discussion.