Changing template, need some help,

Hi, we have a site of a little newspaper that we did with the world news template, you can see it here: www.paternaaldia.com
Now we are trying to introduce k2 and we want to use Appsite template, but have some problems. We would like to remove the lines pointed with the green arrows, and change (remove) the padding that you can see in the purple circles.
I've been trying to do this changes but i can´t do it.

Can someone tell me how to do this changes? Thanks and excuse my english.

Hi

It would be faster if you show us your website with appsite template installed.
If you want send me admin access.

the new template is installed here http://s364105922.mialojamiento.es/pruebasv2b/ You can access with "admin" "demo"

Thanks

Hi, again. Finally i have changed the top and the left space, but i'm not able to remove space that you can see in the screenshot.
I tried changing the modules padding and the gk-container padding in the template.css, but the damn space is always there. Please some help to remove it?

Thanks and excuse my english

Site:_ http://s364105922.mialojamiento.es/pruebasv2b/
Access: default gavick access