http://www.arduino.cc/en/Main/ArduinoBoardNanoThe pins may be in slightly different locations but it looks like they are clearly marked.
Similar to the Arduino MINI, you would comment out the part of the firmware that does the multiplexing (since you have 8 ADCs vs Diecemila's 6, you can have a one-to-one correlation), and uncomment the stock code. Like this:
// Send out analog values
for (j=0;j<analog_inputs ;j++) {
Serial.print("s");
Serial.print(j);
Serial.print(" ");
Serial.print(analogRead(j));
Serial.println();
}
// optional code to read up to 13 or 15 analog channels using an Arduino and 4051BC analog multiplex
// This particular rendition is setup to read 9 channels with a Diecimila and 4051BC
/* for (j=0;j<analog_inputs ;j++) {
Serial.print("s");
Serial.print(j);
Serial.print(" ");
if (j>=5) { // use the 5th analog in channel to read 4 more analog signals by switching the multiplexer
if (j==5) {
digitalWrite(MULTIPLEX_A, LOW); // connect to multiplexer channel 0
digitalWrite(MULTIPLEX_B, LOW);
Serial.print(analogRead(5));
}
else if (j==6) {
digitalWrite(MULTIPLEX_A, HIGH); // channel 1
digitalWrite(MULTIPLEX_B, LOW);
Serial.print(analogRead(5));
}
else if (j==7) {
digitalWrite(MULTIPLEX_A, LOW); // channel 2
digitalWrite(MULTIPLEX_B, HIGH);
Serial.print(analogRead(5));
}
else if (j==8) {
digitalWrite(MULTIPLEX_A, HIGH); // channel 3
digitalWrite(MULTIPLEX_B, HIGH);
Serial.println(analogRead(5));
}
}
else {
Serial.print(analogRead(j));
// }
Serial.println();
}
*/
OR just delete the code between the /* and */, and remove these: /* */ from around the snippet at the top.