RTC to 4Bit LCD

when i first started the thread i was using the LCD4Bit library after setting up my lcd as per:

http://www.ladyada.net/learn/arduino/lcd.html

I am now trying to get the 'Hello World' and 'Serialdisplay' examples to work using a 4bit lcd lib.

Am i just chasing my own tail here or can the above code be used in 4bit mode?