Richard,
First, check the bottom fuse on the passenger's-side fusebox. If there's power there, check for 12 V at the voltage regulator plug red wires. Also check that the regulator is grounded through the black wire that attaches to the case screw.
The wires that go into the plug should be:
brown
red
red (jumped from first red)
(small gap)
no wire
Remove the regulator connector.
Using a short jumper wire, connect the brown and red wire on the connector.
Start the car and carefully raise the revs to 1200-1500 rpm. If you show a charge, the regulator is bad. If you still get nothing. the problem is at the alternator. Make sure that the connections on the alternator are correct. See
this diagram