1) Take the plastic dial off by unscrewing the two screws to the left and right of the steering wheel
2) at the top and bottom of the plastic dial cluster, there are 4 screws which hold it in. One in each corner, take these out and it will come 'loose'
3) Remove the speedo cable & Wire blocks / connectors from the back of the dials
4) Once the three above things are out, it should be removable
5) On the edge of the cluster (top and bottom) Press the plastic clips in to firstly remove the clear plastic layer, then press the other ones in to remove the other plastic layer (which surrounds the dials) Try to do them evenly and not bend them otherwise they'l snap!
6) The speedo and possibly others are held down with screws. Take these out
7) The speedo dial has a small plastic stop at 0 which stops the needle from spinning. Remove this first. If the speedo needle drops lower, remember EXACTLY where this is. If you dont take the plastic pin out and remove it at 0, chances are your speedo will over/under read when you put it back in.
8) Remove the rest of the pins and the plastic dial cards should come out
When you've taken the whole cluster out, do not bash it or shake it about! There's alot of weak green plastic things inside which remove the bright glow from the bulbs. One of mine melted and fell out when i removed my dials, and hasnt gone in again since.
The above instructions are rushed so im sorry for any incorrectness in the procedure. Good luck! and if in doubt, do not continue with what you're doing!