Change the header of the web and banner

[megarock]

Hii! I have this web https://goo.gl/NsGVz3 and some questions:

 

1.- How I can change the header phone and put the facebook icon?

2.- How I can move the position of main banner for the other banner?

3.- In product page appears "shipping protecion..." but there is no link, how I can link it to other page?

4.- I can put small and random images in the pages saying "hello" to my users?

 

Thanks a lot!