Somewhere high on the pass side of the windshield, water is getting inside the seals and running down the side to pool on the inside bottom of the ws. From there it dribbles down the side of the dash and onto the door and down to the carpet.

The seals all look good but water is getting in when the car is moving. I can replicate the problem by spraying a garden hose on the top section of the ws.

I have tried using a little black silicone seal but no luck.

Any advice about techniques and products to seal this leak??

Other than trying to seal it with a silicone windshield sealant, the only other alternative would be to replace the windshield gasket entirely. It's not a hard job, it will require a helper when you go to put the windshield back in, but for around 50 bucks for a gasket and an afternoon working on it, it's probably the best alternative. If you have had water getting under the gasket for a while you may have some rust developing under the seal, so removing the windshield might actually be the best course of action to keep from having more trouble down the road.