Since advanced integration places the reservation form and all other content on your pages (no IFRAMES are used), you can control the rendering of all elements with CSS styles. In case of the logo you can simply add the following code to the page containing the checkin24-7 plugin/module:
<style type='text/css'>
.poweredby {display:none;}
</style>
If you wish to remove the checkin24-7 logo from the calendar preview which does use an IFRAME, you'll need to follow the directions in
Q173. Please check the
stylesheet parameter.