I just released version 0.9.2 of WP-Table Reloaded.
This is a bugfix release. The plugin deactivation hook was not called properly due to a typo. And I forgot (stupid me!) to add the global-frontend-style.css file which is responsible for the styling of the table. This probably was the reason why several people just saw the raw html table. (Reminder to myself: Always double check SVN operations!)