Please read this documentation carefully, it will help you eliminate most of potential problems with incorrect configuration of the extension and Magento.
If you don’t find the answer to your questions, please refer to this chapter for more information about support policy: Help & Support > Support Policy.
Magento configuration, installation, maintenance, customization etc. is beyond the scope of our support. But since Magento is very popular platform you can find tons of useful tutorials and articles on the web. Here are some resources for start: