How to display GridMarket Child Theme like Twenty/Ten Theme

Hello, I've been a Member for two months now but am still having difficulty configuring my Theme.

I have received some Community support, for which I am grateful but time is slipping by.

I would like my Gridmarket Child Theme to be configured in such a way that it displays like the Twenty/Ten Theme. Can this be done and, if so, how?

The two Screenshots show how I would like the Theme displayed and how it is currently displaying.

Thanks and Regards

David