First of all, create account with UserPowered.
To start receiving a feedback, you have to list your website first. This is where you want to collect feedback.
Widget is a panel which pops up and allows visitors working with a feedback.
Once you create the widget, the widget HTML is generated:
Now you have to put the widget HTML into your website code. This process depends on website engine/framework you use.
Our support team will be glad to help you installing UserPowered!