How do I add new dolphin skin template?

Hello,

As a new user and someone not overly technically savvy, I hope everyone will allow me to ask what I am certain is a fairly simple question that has been answered many times. However..I cannot seem to find a post that is directly on point.

I have purchased a skin template for my Dolphin v. 6.0.0005 and now have unzipped the emailed files.

The "Read me" document says: 

 Installation:

1. unzip the files and paste the tmpl_ale folder to root\templates
2. go to admin panel>>settings>>advanced settings (to make the template as 'Default' template on your site).

My questions then are:

1. How do I access the root\templates in admin? I cannot seem to find this area...
2. How do I "paste" the tmpl_ale folder there? Is it as simple as a cut and paste or do I somehow upload the folder?
3. Once I have added the tmpl_ale, will the admin panel automatically offer me this as an alternative choice to UNI?

I am very grateful for any help that might be given to me!