Replacing drawing template

We have lots of drawings that were created on an old SW Drawing Template where the font, note, annotation sizes are real small. There are other changes that are necessary on the template also. We need to change these template to a new template were the dimension/annotation, units etc will be updated to the new template. I created a new template with all the settings I want and I then save the template to a new sheet format. I then open an old drawing and go to Property and try to change the template to the new one. Every thing seems to go well because I did not get an error but none of the settings got transferred from the new template to the old template. The options are still the same as the old. What am I doing wrong and how can I fix this?

SolidworksDrawings And Detailing