Alternator Connections

Hi All,
I have just replaced my alternator on a 200TDI.
The original has a plug connector with 3 wires going into it.
The new alternator just has a series of studs on the back...
Could anyone tell me how to wire this up correctly please?
I have found B goes to battery, D to diode and W to rev counter (which I don't have) but which wires in my plug correspond to these...?
Thanks

try reading this

just found this anorl.....
mite be of interest to peeps.....

"Land Rover common faults
Most Land Rover Defender, Discovery and Range Rover 2.5 diesel models
regardless of year of manufacture all seem to suffer from the same problem
BAD EARTHS on both Alternators and Starter Motors.
Before installing the replacement unit on a vehicle with a discharged (flat) battery,
non-start or non-charging please check the condition of all earth connections within
the engine bay and if corroded replace.
Affected part numbers are QA1502, QA2097, QS1461, and QS1693.
Another Land Rover fault is quite an unusual one:
On the Defender and Discovery TD5 models the alternator is fused through the
brake / stop light circuit.
Should the fuse for the brake lights blow the alternator will not charge, always check
this fuse before replacing what appears to be a faulty alternator.
Affected part number is QA4120."

Normally the two thick wires will go to B and the thin wire goes to D. Never really understood why there were two B outputs on a lucas plug and socket.....

Thanks guys - just what I was after! Original one has cracked casing so has deffo had it!