We have prepared a detailed documentation on that matter, which you can find here:
You can also download a trial version of Sitefinity to test the Ecommerce module as well as other functions of the CMS.
the Telerik team
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 Public Issue Tracking
system and vote to affect the priority of the items