It's raining in my Rover
 

I have a '98 Disco that is mechanically sound, but it seems was in an accident, so there are various and sundry minor things wrong with it. Bumper caps painted (replaced) and such. Basically, when it rains hard water comes into the cab, mostly down the rearview mirror, but also some on the left side of the windshield. I'm guessing I need to get the windshield re-sealed?

Does it have a sunroof? If it does then clean them out with compressed air and make sure the water flows out of them. open it up blow them out and pour the water down to make sure the water is flowing good. If no sunroof and the sunroof drains are intact and not broken then its possible its the a pillars leaking.