poll 2.03 vs 2.02

What's the difference and how to update without harming the existing polls?

Don't really know apart from some code updates i guess.

If there are database changes then you can just overwrite the old files
with the new ones. Or you can uninstall the old one and install the new
one but write down all the polls and the no. of votes and then enter them
manually from the admin area.

Auron

I must reformulate my question. My concern regards to templates and customization not just results. In other words what files (folders) should be saved.