Upgrading CiviCRM 4.0.1 to 4.1.0
The error you posted says, "Hi, I'm trying to create a new table in your database, but that table already exists."

Most commonly, this happens when you do an upgrade, then restore a backup, then attempt the upgrade again.  My guess is that you got a similar-looking (but different!) error previously, restored a backup, then got this on a second upgrade.

The reason this happens is that restoring a backup puts OLD tables back the way they were, but doesn't touch any NEW tables that don't exist in the backup.  So if you upgrade, you can NOT restore your database to the previous version simply by reloading the backup.  You must first DROP &lt;database_name&gt; and CREATE &lt;databasename&gt; so that you're restoring to a clean slate.

Try doing a DROP and CREATE before restoring your database and mark this question solved if that clears this error!  If you have a separate error, please post that as a new question.