ARRRRRGH. Now it tells me, after I installed the new files in a /blog2/ directory and went to it with a browser, that it wanted to setup the wp-config.php file. When I put in the same values that were in the original wp-config.php file, I get this message:
Can’t select database
We were able to connect to the database server (which means your username and password is okay) but not able to select the myname_wordpress database.
Are you sure it exists?
Does the user myname have permission to use the myname_wordpress database?
On some systems the name of your database is prefixed with your username, so it would be like username_wordpress. Could that be the problem?
If you don't know how to setup a database you should contact your host. If all else fails you may find help at the WordPress Support Forums.
The database IS there, so I don't know what the problem is. I have permission to use it. The username (my name + _wordpress) is, actually, correct, so I don't know.
Could I upload the old wp-config.php file into the new /blog2/ folder and make that work?