How to make rollover images with "News Show Pro GK4" module?

Hi everyone,

I have this template (yourshop) that comes with "News Show Pro GK4" module.

Template Demo can be found here: demo.gavick.com/joomla15/nov2010/

What I'm trying to make with the module is rollover (mouse-over) images on the front page. Briefly, to display bigger images when mouse overed... I know joomla and some editors are able to do it; however, the GK4 module doesn't have such a feature that comes with it or I'm missing something that's in front of my eyes

Could someone please help me out? Thank you for your help, appreciated a lot.

Regards,