I am try to installing Drupal-6.2.4 on XAMP. I created db named drupal_6_2_4 and when installation process reaches at Database configuration step it does not create tables into supplied db and just reload the page.
The solution was to edit the settings.php file, putting in my database information manually. Just look for this line:
$db_url = mysql://username:password@localhost/databasename;
And change the username, password and databasename parts.
Then return to the Database Configuration screen, enter the information again and continue. The correct database information will be read from the settings file and the configuration will continue to the next step.
And one think more before try this first try to add the user permissions to the folder, /sites/default may be it solve the problem.
Happy hunting!