How to redirect the default page?

Hello:

Let me explain the situation before the question:
The hosting structure:
public_html (this folder is the root)
–>index.php (the coming soon page)
–>enfold_folder (where WP enfold is storage)

I would like to change the default page public_html/index.php (coming soon page) to the public_html/enfold_folder/index.php.

I create a htaccess file and uploaded it to the root: public_html with this:
DirectoryIndex wpnew/index.php

And it works! but when I clicked to another page inside, per example, services, it only show a blank directory.

How Can I set-up the default WP enfold page?

Thank you for your help!

Steve