This is known as the 1and1 blog. Unlike their canned web site this cannot be be dicked around with. They have a bunch of themes, some of which are pretty cool. This article was created in Jul 2012 and revised in Mar 2019 as most of the material is out of date and much of the supporting documentation has gone away. 

You need to create a MySQL database which needed a contract upgrade.

1. Create a MySQL Database
2. Create a subdomain and destination
3. Upload the wp installation to the destination
4. Create the database connection parameter file

Now to choose a new theme, and I need to discover how to copy my old blog entries to the new version of WordPress. (See comments.)

PHP Versions

This is a parameter on the 1&1 Control Panel to set the PHP version. I set it to 5.2 on 19th Dec. 2012.