My Theme Doesn't have page.php?!

Hi, I was created a page today, when I realized that it need comments. After much trial and error I have realized that my theme lacks page.php. The them I got (many months ago) is located Here.
Could a page.php be made, as I have tried using a default version, however then several things go wrong:
-The footer appears above the text
-The page’s text does not appear
-Only the comment box appears

I am not read to transition themes, so If any one would help me, that would be great, thanks!

P.S. pages function fine, except they do not have a fluid layout, and there are not comments available.