I dont know exactly how to express my question. What i have is at the left of the picture. What i want in my product list by category is on the right. How can I change the layout?
http://premium.abiguate.com/images/virt.jpg
In other words i want to layout my product list in category with the exact same layout that the products have on featured/recent/top.
It looks like you have a commercial template using overrides so it is those you will need to modify. Use Firebug to work out the code changes required.
See these:
http://forum.virtuemart.net/index.php?topic=102850.0
http://docs.virtuemart.net/tutorials/33-templating-layouts/78-introduction-template-system.html
http://forum.virtuemart.net/index.php?topic=108212.0