this has been mentioned a lot on the forums and have been goggling a lot too but not have been successful.
I am right now using a OSE version 7.1.4 n its working fine .
I would like to change the logo .
I know its illegal to change the logo in the OSE edition but jus wanna check it out at least I can just put our website link if the copywright law permits
goin through the forums and goggling around one of things i did apart from others was to copy a custom logo file LoginBanner.png in the /opt/zimbra/jetty-6.1.22.z6/webapps/zimbra/skins/_base/logos.
but it does not work.
I really would be grateful if someone out there would be of help with his wise advice