There are many parameters to control this module.. for e.g.

• You can set any title you want for this module for e.g. My Bag, My Cart and so..
• You can show and hide product description, price , cart image.. etc..
• With Advance parameter you can write your Own css for this module.. so you don't have to touch to core files..

No core hacks to Virtuemart files, only install and configure it..