[kh99]

It depends on the plugin, but I think most of the time they don't change the templates in the database, but rather they modify them after they've been read from the database but before they are rendered. In that case reinstalling won't do anything. It is possible that some mods *do* change the templates so what you're talking about would work, I've just never seen one that worked that way.

It's possible that if a mod it trying to modify a template by changing the template cache (like I mentioned above) that it's failing because you've modified the default templates, in which case you would probably need to make changes manually. Which mod are you talking about? You could ask for help in the mod thread if it's one you downloaded from here.