Site completed, shifted to public_html directory, not working

My WordPress site is ready to launch, and a moderator said to shift it from its existing location at alkpurusha.net/WordPress to the public_html location on my server where presumably the alkpurusha.net URL would introduce the world to my new site!
Not so.
Not only that, I can’t access my WP Dashboard et al to try figure it out.
I entered the URL alkpurusha.net/index.php and a scrappy unformatted version of the home page appeared with a listing of pages therein, none of which are accessible when clicking on the link.
So I’m in a pickle and would appreciate some help!
Thanks.

PS I can of course, shift all the WP files back via FTP to the alkpurusha.net/WordPress directory, but perhaps there’s a quicker fix….