I would change ths logo on a 7911 too, but it's not working with a Call Manager version 5.1(3)
I've doing all the stuff described on the document http://www.cisco.com/en/US/docs/voice_ip_comm/cuipph/7906g_7911g/5_1/sip/english/administration/guide/1106cst.html, but the new logo doesn't appear on the user background configuration menu.
I've create the 2 PNG file with the correct dimensions, change the list.xml file, copy the 3 files on the Desktops\95x34x1 directory, reset the TFTP service...
Can anyone help me please???
thanks in advance for your help,