I meant that the current client download for D20 is 5.3.2 & for the server download its 5.2 - that's accessed from the FTB Launcher. I have added various mods to the server from the downloaded client mod pack. But I am just kind of shooting in the dark as I am not actually certain if there is/should be a difference in the jar or maybe the config files, I have looked but have not found any differences?