you will ned to edit this in the tempalte for the theme you are using.
go to webassist/themes/<your active theme>/templates
where <your active theme> is the active theme for your store.
in the index.dwt.php and page.dwt.php file
edit:
<a href="../../../../index.php">
<img id="headerLogo" alt="logo" src='../../../../images/logo.shiny.png'>
</a>
and remove the anchor tags.