About the B5 races, I think that currently doesn't exist a compiled group of all the races... but you can find the Earth Alliance, Narn and Shadows, into the TDM-Modpack. Also the Colonials are into the TDM.
http://forum.shrapnelgames.com/ubbuploads/[K126]Mephisto/TDM-ModPack_200.zip
And the Last patch:
http://forum.shrapnelgames.com/ubbuploads/[K126]Mephisto/BetaUpdate5.zip
The Minbari at:
http://forum.shrapnelgames.com/ubbup...s/Minbari2.zip
The best available Trek races at:
http://www.angelfire.com/tv2/NewAgeShipyards/index.html
But you can find a compiled Version into the library of the Play By Web Server (look for the user Atrocities into the library). The PBW link is
http://seiv.pbw.cc/
Also, the Romulan and Klingon are included into the TDM.
Finally, I suggest that you install ALL of them under the SEIV folder, but in separate folders (one folder for TDM and maybe the Minbari, and other folder for the Trek Races).
To pick the Mod that you want to play, I think that you should install the great program that Matryx did:
http://forum.shrapnelgames.com/ubbup...E4Launcher.zip
After you became to play with the modded races, you never will come back to the standard races!