Do you see the module under Content and are you able to create items? If you are in Multisite, please, check whether the module is used by the site - Manage Sites -> from the site you are using - Actions -> Configure modules.
Please, check whether there are any errors in the browser console or any failed requests.
Do you want to have your say in the Sitefinity development roadmap? Do you want to know when a feature you requested is added or when a bug fixed? Explore the Telerik Sitefinity CMS Ideas&Feedback Portal
and vote to affect the priority of the items