WPProHelp

You are moving WordPress from one location to another not to it’s own directory. I would recommend you to follow the following procedure:

http://codex.wordpress.org/Moving_WordPress

So you mean the plugin does not even work with a vanilla install of WordPress, i.e. without any other plugins and default theme?

In that case contact your hosting provider since it might be something related to the setup rather than the software itself.

You have to create a new WordPress page template and remove the sidebar from that particular template. More information here: http://codex.wordpress.org/Pages#Page_Templates

Make sure you make a backup of what you currently have before making any changes, just in case.

There seems to be nothing wrong with your website. Can you take a screenshot and highlight the error?

You can do a manual upgrade or you can simply upgrade to the latest version of WordPress from the dashboard.

Here is a detailed document for you: http://codex.wordpress.org/Updating_WordPress

It is a very simply procedure:

1. Upload all files (apart from the .sql) to your new website
2. Open wp-config.php file and record the following: database name, username, password.
3. Using your hosting provider Cpanel, create a new MySQL database and name it the same name you found in wp-config.php.
4. Create a username and password to access this database using the same username and password you found in the wp-config.php file.
5. Using PHPMyAdmin (from hosting provider Cpanel) connect to the server
6. Click on the database and click on import. From there you should have an option to import the .sql file and restore the database.

That should be it. I would still recommend you to read the following codex so you get accustomed to the WordPress files and structure etc;

http://codex.wordpress.org/Getting_Started_with_WordPress

Let us know if you encounter any problems.

Use a plugin such as wp-table reloaded to make better looking tables in WordPress – http://wordpress.org/extend/plugins/wp-table-reloaded/