The Di L 20 bit is the model (Disrupter) then the frame size (20)
As for year or manufacture, it is all standard OEM kit, so in-house crank and seat, bars etc, the wheels are 48 spoke with the OEM skidmark tyres. All the Disrupters had Tektro brakes front and rear. The only difference betwesn the various models from the EL spec sheets look to be the number and quality of the stunt pegs supplied, and there aren't any in your picture.
The cable routing is a bit of a hint. The 2002 and 2004 had downtube routing for the rear brake,the 2006 switched to the top tube. However, the 2002/4 bikes had drilled chainrings, the later ones solid.
I'm guessing, but that could turn out to be 2002/4 bike with a replacement chainring.