Countdown Timer sketch for PCD8544 using Adafruit Library

I'm using Arduino 0022 IDE in combination with the Arduino nano board with AT Mega 328. I've not changed the code except for the pin numbering as I had already connected the Nokia 5110 via a logic level converter this way for another sketch, which worked alright in the said configuration.
pin setup:
// pin 12 - SCE
// pin 11 - RST
// pin 10 - D/C
// pin 9 - DN
// pin 8 - SCLK
Thanks for looking into it. I'm new at Arduino and programming for that matter and these are my first steps so please bear with me.
Henk