Where can I find my uploaded template?

I have a problem that has attempted to solve for days now without success.
It’s so that I have a wp website that compares different male enhancement, I affiliate marketing a company in this bransh. I am using ads from the past, but now they offer an affiliate template for the landing page, I have downloaded everything and changed in notepad ++, since I’ve uploaded a whole folder (which I have been told to do) and connected to my wordpress. In filezilla it says that everything is successful. BUT I find nowhere the template I uploaded. And no one seems able to answer where it is. I use the theme weawer 11, how should I do?
Could the problem be that I have not uploaded template folder in the correct folder on wordpress? Should it into a special folder?
Really grateful for the help as this is getting very frustrating!
Regards Nadia