Passenger side front window pillar and seat belt pillar soaked

This is what I found about the drains:"The rear drain tubes have to routed above a head curtain air bag bracket so they won't have loop allowing water to lay in the tube instead of draining out. All of the early cars, the tubes were not routed correctly." I will keep looking for more information.

There might drain tube extensions that need to be installed. "Subject: 08207- Sunroof Water Leak - Install Drain Tube Extensions
Models: 2008 Buick Enclave
2007-2008 GMC Acadia
2007-2008 Saturn Outlook
Equipped with a Sunroof

Well at least they're getting somewhere, you definitely want to get any water leaks on to the fuse panel fixed ASAP. That can cause a number of strange issues, even so far as the car stays running after you shut if off because of an electrical short. So is there leaks on the driver's side as well?

Yeah, the water is puddling up somewhere and the vehicle movement while driving is causing it to finally leak out. Well let us know what else they find. We'll help out as much as we can. If I find anymore info, I'll post it for you. But ask the dealer what they think about installing those extension tubes, I'm guessing in may be leaking in more than one spot.