Dialogue allows you to replace the logo at the top of the page.
After you've logged in, click on the Administration link at the top of the page.
Next select the Site Settings link at the top of the page
In the Site Logo section, click on Go to the logo customisation page.
Choose the image file you want to use, the ideal dimensions for this are: max 70px high and max 350px wide.
Add in a description of your logo for your visitors who may be using assistive technologies, and then click on the Save button.
Your logo will replace the one previously at the top of the page.
If you wish for any other amendments to be made to your Dialogue site, please speak with your account manager.