There are two type of installations.
1. Tou have the SD card installation version and
2. You have the PC installation version.
From TT 6 and upwards the PC installation version is disapearing. This version needed to see the voice files properly installaed. It used the registry to find the files. For this version you need to install the voice cabs form the source disks.
The SD card version looks at your storage card and searches for the voices directory. When this directory is there and you cannot see te voice files, delete the collected.ini file. When you start up TT again it will search for voice files.
Still there is a possibility you cannot see them. I had this probem because I have an miniSD card in my devices. I noticed that TT had made several directories on the card including the voices directory with the file collected.ini. Throwing away the TT directories on my miniSD card solved my problem.
Touch-IT m2d BETA v3.5 WITH 3D Drivers