If you don't see the "- VDL Template 7.0a" Ensemble, then you're not using the Template. From the Template package, you need to use a COPY of the file "VDL_Template_7.0a_(Sib7).sib" for your projects.
I get the feeling you have not read the Readme file. Please make one thorough pass through that document. The specifics to using Template instruments in the score is on page 9: Adding Instruments to the Score.