Water Pump Gasket Qs.

[1QuickCoupe]

I just got my pump gasket kit from RCM, and I was wondering what all the stuff is for. There are about 4 o-rings, I know that one is used between the block and housing, and one on the cross over tube between the heads. Where do the rest go? Any help would be appreciated, I am fixing on tearing into it again.

 

[CerberuS]

Cross over tube theres one each end.

Pics?