> I have two copys of RA2 installed on my pc in two difrent directories. When I launch XCC theme writer it only adds the mp3's to one copy. Why can't i choose wich copy I want to use in the Directories... dialogue?

Probably because most ppl would only have 1 copy installed on their PC, so Olaf never even considered the need for such an odd option.
Why do you have it installed twice?