http://www.spiralscripts.co.uk/joomla-modules/vm-modcontroller-pro-detail (http://www.spiralscripts.co.uk/joomla-modules/vm-modcontroller-pro-detail)
This module allows you to control the display of other Joomla modules on Virtuemart pages. It allows you to assign modules to Virtuemart pages,, categories, and shopper groups.
For example, if you just want to show a module on the checkout page, or the main category pages, or even to a particular shopper group, this module allows you to do this.