Changing the logo in the header

[Poouster]

Hello! I have a template here and I want to change the little shield log thing in the header to this blue "pacifichouse logo. I don'tt have a problem changing any of the other elements, but this, I can't seem to do.
[Acorn - attachment deleted as it is a page from a XaraTemplates.com bought product - use a screenshot].

Thank you