Moving a WordPress site to 1and1

Hello,

I’m trying to move my WordPress created site to a web address hosted at 1and1.

I have installed WordPress on 1and1, set up the database and uploaded all my web files to the root directory. Basically everything up to and including step 13 of this how to:

https://www.ehow.com/how_4929191_install-wordpress-servers.html

When I come to complete the final part of the move by putting /wp-admin/insatll.php after my web address, all I am seeing is the standard 1and1 ‘this domain name has been registered’ page.

Any help or advice much appreciated.

Thanks,

Ben.