How Set Child Category under Parent Category in Joomla Virtuemart

[kishmish]

Here I have a problem, when I create a subcategory it goes to main menu and I need to show it in body where main category shows .. Simply I need my category setting like this, so how I can do this please.

Both sites use "Virtuemart". What do I need to do for this kind of result?

I need this http://www.empiremedia.biz/ Like this http://www.unitedbroadcast.com/