You can add any of the images that you have added to your photo gallery into the page.  To do this you simply click the image manager link in the editor and select the image you want to include in the page.  Then you need to highlight the image and click the link icon to create the link to the page you want the user to go to when they click the logo.  We suggest you set the link up to open in a new window if the link is not an internal link in your own website.

You can choose to hide the photo gallery from the photo galleries section.  This allows you to upload images and logos that you wish to use throughout the website without making them appear in the photo galleries section itself.