These may help:
Without the Eurosport kit, this mod becomes very involved...
In the third picture, the long curving hose from the PCV valve to the T-connector needs two more elbows than are pictured, else it will collapse.
Before installing the M50 manifold, plug an open port on the bottom of the manifold towards the back of the engine or you will have a vacuum leak.
Also, when reinstalling the (emissions?) sensor to the fuel rail, be careful not to pull the hoses too much or you may pull them out. The valve (EGR?) one of the hoses goes into sits beside your fuel filter.
Good luck and if you have an specific questions feel free to send me a PM preferably with pictures
EDIT: As soon as you take the old manifold off, plug the intake ports on the head with a cloth or something! I came very close to feeding my engine tree bark...
Also, you will most likely have to lube the injectors to get them into the new manifold as they and the manifold will be dry. Be sure to use a lube that is rubber safe or you will eat the o-rings