First I have to say:
I haven't made the Tashia-Mod, this goes to Michael Lyashenko. Tashia's Homepage is here . I only translated it into german language and made an update, fixing some things (dialogue-loop, Peanelian's ablilities, bug in the Jan-banter). Also Tashia should now be playable without ToB, too.
I kept close to the original text. And if you want to download actual version of Tashia, you find it here. Unzip this file into your BG2-directory and run "Setup-Tashia.exe".
Just have fun.