What do you want to know? All the 1.9TDIs are essentially the same lump with different bolt ons.
Check out 'freds tdi page' its mainly an american site but lots of good info on there. I would start with altering the breather hose from the cam cover to vent to atmosphere or a catch can and blanking the EGR valve. Give the boost system a good clean out including the inlet manifold and replace the seals.