When you're viewing a list of listings in category view, clicking a listing's name brings you to view more details about a listing. You can change the behaviour of the link to go to the listing's website or setting it not to have a link at all.
Here's where you can change the configuration:
- Go to "Mosets Tree > Templates > M2"
- On the left side of your screen, you'll find a list of parameters for your template. Look for a parameter that says "Listing Name's link destination" and change the drop down box according to the behaviour you want.