You will need:
MapEditor folder and run the DBSRV.exe (This is the master server).Currently, the most reliable source for the clean 1.5b.1 client is the Tantra Revival Archives or pinned posts in Tantra Real Talk (TRT) forum.
Direct Search Keywords: "Tantra Kp Beta 1.5b.1 rar password" or "Kp 1.5b.1 Google Drive."