You can change the image that is used in the login dialog box that users see before they log in to the Novell Vibe site.
To re-brand the login dialog box to contain a custom image:
Navigate to each of the following three directories for your operating system:
Replace the novell_graphic.png file in each of the directories with the file that contains the image that you want to display in the login dialog.
Stop and restart the Vibe server.