Advice needed how to use "live" checkboxes with datatables ($.fn.dataTableExt.afnFiltering, fnDraw?)

Hi,

I'm discovering datatables and novice to javascript and DOM.
Currently i face problem where I need to modify datatable onthefly and how it renders (draws) page.
I have couple of checkboxes which when selected should enable/disable columns and couple of scrolldowns that should use search.
Sample is shown in: http://live.datatables.net/esufaw/edit#javascript,html

First I thought that I should use $.fn.dataTableExt.afnFiltering - but with that I got only partly solution and not the full one.

Can anybody help/point me in the right direction?
(I found that http://live.datatables.net/oyinin/3/edit#preview is somewhat useful for me?)

What and how would be best.

Also - multiple column/row filter is needed - for this I did not find any solution :S
Br,
KT.