Hello,
1) please check this part of documentation:
https://www.8theme.com/demo/docs/woopress/index.html#!/9_footer
2) navigate to Theme options > Header > ‘Breadcrumbs Background’ to set background image for breadcrumbs.
3) to delete links please add following css code to yours custom.css file:
.header .links{display:none}
If you need to add elements to header, you need to add that code in Dashboard > Appearance > Widgets > ‘Place in header top bar’ widget area
4) please specify your request or show us on screenshot what result do you want to achieve.
Regards,
Stan Russell.