@robvoiplease be appreciative of the help you're getting. Nick is really helping you here.BTW wikipedia is not a source of information about Arduino. There are several problems with their pages about Arduino but it's a pain to get them fixed.m
The question what the statement about SPI on this official arduino page http://www.arduino.cc/en/Main/ArduinoBoardNano means stays.
These pins support SPI communication, which, although provided by the underlying hardware, is not currently included in the Arduino language.