Couldn't find "lcd.h" and couldn't get the standard library "LiquidCrystal.h" to work, presumably it relies on timer0. The project photos show the usual LCD connection so there must be a working library somewhere. Maybe one of those referenced here: http://playground.arduino.cc/Code/LCD
What I have done for a display is use "SoftwareSerial.h" to set up an extra serial port to send data to a Parallax serial LCD. This has worked well for me.