Re: Functor fibrations and Cartesian closure of general presheaves

For the first question I may refer to p.17 of my Notes on Fibrations namely the last paragraph "Fibrations of Diagrams" I know this from the unpublished lectures notes by Roisin of a course Benabou gave in 1980 in Louvain-la-Neuve Thomas [For admin and other information see: http://www.mta.ca/~cat-dist/ ]