Why is this Happening?

 We have found that some of our users, particularly those using an international translation of Joomla, aren't having their database tables created during installation.

Solution

Inside the zipfile for the component, you will find a file called install.sql which contains all the database table definitions. 

1. Using either phpMyAdmin or a Joomla! SQL Component (like EasySQL), copy/paste all of the install.sql file into one SQL query. 
2. Replace all the #_ in the names of the database tables with your Joomla! installation's prefix (many will use jos_) so that each table name reads "prefix_billets_xxxxx". 
3. Run the SQL