You aren't talking about the same thing as me, then. I install the System Software, which is basically the driver
files that allow apps to see the drive as a Lightscribe drive. That should go on the system volume. Your labelling software should let you install anywhere you want. I'm assuming this is what you are referring to, considering the fact you mentioned templates. I don't ever bother with the LightScribe-brand labelling software from Lightscribe.com, because it's featureless and junk (so if this is what you had been using, check out some other options).
I personally use a free version of SureThing that came with one of my burners. Even so, any software you use should let you open templates from anywhere else. You shouldn't have to keep the templates in the program's folder.