[Jamorobo]

yes minbari do have jump drive/ gate tech, their jump drive genarator is also smaller than earth and centuri jumpdrives as they have them in white star, ships which are small compared to the earth/centuri ships that can carry a jump drive. Earth gets their jump gate tech off the centuri who i think get it off the minbari, narn also get theirs off the centuri and they steal most of the tech they have from them.

Shadows and vorlons definatly have it.