I can help you with this part - simply divide the weight of hops by a factor of 5-8 (whatever you choose) and enter that. That's how I did it. I also adjusted the %AA in my wet hop to the middle of the range. Hope that helps and happy brewing!
I just talked to the guys at my LHBS and they mentioned that the fresh hops they have in stock have more of a 2:1 ratio. It all depends on just how fresh the hops are, the fresher the hop, the more water weight it will contain.