Step 1) Go to the Subsite Administration for the site where you want to create the page. Do this by following this example: author.oit.ohio.edu/subsite/admin.cfm (This tutorial will work in the /demo0/brad/ subsite.)
Step 2) Click the New menu button at the top of the Subsite Administration interface and choose the Page… button.
Step 3) Find and click the subsite where you want to create the page and click Next.
Step 4) Use the template gallery to pick a category where your template is saved and then click next Next.
Step 5) Find your template in the list, click on it to hightlight it, and then click Next.
Step 6) Fill in the Create New Page form.
Create New Page Form Details (see the guide linked here for more information on this screen):
Step 7) Click Next.
Step 8) If you see the custom properties prompt, accept the default settings and click Save.
If you followed the directions correctly, your browser will navigate to your newly created page.