Prepare a replacement logo in a similar size to the BrowserCRM logo, which is 128 x 32 pixels saved in PNG format.

Copy your logo into the /img directory for each skin.

The current 4 skins have /img directories located at:

<browsercrm>/skins/aero/img
<browsercrm>/skins/justblue/img
<browsercrm>/skins/plain/img
<browsercrm>/skins/vista/img