Hi.... Many years later... I'm having same problem.
downloaded Oledb provider "tdoledb__windows_i386.15.00.00.01.zip"
Installer claims it doesn't found prerequisites:
- Shared ICU Libraries for Teradata 15.00 - Teradata GSS Client 15.00
But they are isntaled, throught "td-ttu-15.10.05_for_Windows.zip"
Client machine is Win x64, pwrhaps thats a problem?
I suspect it has to do with the fact that development has ceased on the TDOLEDB provider at TD 15.00.00, and even though it's included in the 15.10 package, it's still looking for the 15.00 versions of the supporting software components. You may try uninstalling the 15.10 TTU and using the 15.00 TTU to fix this..