These links cover the converting of Kult to the Corps rpg system and also includes some files which may be of use to GMs of any game, such as the skill list and especially the related languages listing which shows how the languages of the world are connected.
I personally find the Corps rpg by BTRC (Greg Porter) to be one of the best on the market and I have not only converted Kult for it, but I am also in the process of converting Vampire and the rest of the White Wolf series. I find the WW combat system very unsatisfying and , as anyone who has tried to play with the various systems combined can attest, lacking in consistancy and playability. They have put together an excellent resource and I will continue to use elements from it, but systemically speaking, it really doesn't work that well at all. These conversions will be posted when they have been completed.