ArtRage 2.5 Full edition definitely has stencils in it! If you dont have the stencils available, then chances are something has gone wrong with your update.
From the ArtRage 'Help' menu, choose 'About ArtRage 2'
There should be a large 'ArtRage 2.5' at the top of the information.
If it says 'ArtRage Starter Edition' or ArtRage 2.2 or something like that, then your update hasn't worked.
You may need to uninstall your old copy of ArtRage before installing the new one.
If you're on a Mac, open ArtRage 2.5 from the Application menu, rather than double-clicking a ptg file, in case the file associations haven't found the latest installed version.
AndyRage's mantra for graphics engine code:
"Sure - how hard can it be?"