I've read thruogh those documents, It hasn't really helped much. Another thing I've noticed is that sometiems when I touch the plastic casing of the chip it changes which LEDs are on/off.. seems pretty random, very very strange.
Another thing, could the problem controlling the LCD be due to the speed of the chip? This is a pretty fast chip. It does 1 instruction per cycle.

Well, Any more info would be great.. thanks