tsv501.zip is the main file for Tortured Souls.

TSv503.zip - TSv505.zip are patches for Tortured Souls.  Download them if 
you want to play Tortured Souls with the Big Picture.

TSv51.zip is an all-inclusive patch, encompassing v5.03 - v5.06.  Download 
it if you want to play Tortured Souls Stand-Alone.

TSv704.exe is the latest version in WeiDU format, it is compatible with 
Neverending Journey Second Edition, Baldur's Gate Trilogy-WeiDU 
(BGT-WeiDU), and Baldurdash-WeiDU v1.66.

Setup-BGT.tp2 is the TP2 file needed in order to play NeJ with Baldur's
Gate Trilogy.

bgtsongs.exe will restore the original BG1 songs.