Hello -
Argh! Argh!
I was able to get the NPC sounds file manually copied, and you were right, after that the setup program prompted me for a no-TotSC install. Everything seemed to be going fine until...
"BG1 resource mismatch. Cannot continue."
And the installation canceled out. What does this mean?
Are we talking about an English language distribution of BG? If not, the no-TotSC option will not work for you.
If you do in fact have an English language distribution, others who have reported the same error have had success with rebooting and performing the installation prior to opening any other programs. The no-TotSC patching has shown itself to be decidedly flakey in this regard (at least for some users).