1. Need to have 3 column categories on homepage.

(I referred the manual
Number of columns — sets a number of category columns in a category box on a listing type page. )

It doesn't work for flatty template.

2. Need to have header like http://auto.demoflynax.com/ for general flatty template.
( Logo ---- Advertising Space --- Account Details)

Am just newbie to this script, Can anyone help me to do those things.

Thanks & Regards