index.html File Uneditable Options

[ggash]

I recently purchased this website template (http://sodayoda.com) and am in the process of editing the information on the site. I quickly noticed that with the HTML editor I'm using, if I open the index.html file and save it, even without changing the code, this is what happened:

Pre-opening file: http://sodayoda.com/#!/pageSplash
After-opening file: http://sodayoda.com/jamison/#!/pageSplash (Links don't work)
http://sodayoda.com/jamison/#!/pageAbout (NavBar links don't work)

I can't figure out why this keeps happening. I'm not even changing the file.

I also don't understand why when I go to the home page sodayoda.com, the domain name doesn't remain sodayoda.com but changes to sodayoda.com/#!/pageSplash. Thoughts?

I've attached the index.html file I'm having trouble with below. Any info on how I can solve this problem, I'd really appreciate it.