WOWSlider has 2 types of licenses: Single Website and Unlimited Websites.
With Single site license you are able to install slideshows, generated with WOW Slider on any pages within your domain name.
Unlimited Websites License allows you to install sliders on an unlimited number of your own or your clients sites.
You can find all information about licenses on our website: http://www.wowslider.com/licenses.html
What’s mean “it doesn’t work”? We need more details…
Which step of instruction do you have problem with?
Are you able to add generated module in WordPress?
Did you add a shortcode?
Did slider appear on your page?