Changing hostname on NBU Appliance 2.6.01

Hi,

Is there anyway to rename the hostname on appliance 2.6.0.1? I have one character incorrect and need to change but the appliance will not let me factory reset. The following tells me that I can not go back to my old 2.5.2 USB image.

http://www.symantec.com/business/support/index?pag...

Im kind of snookered now. Do we really need Symatec PS to help us change the hostname? The benefit is we do not have any live backups, so we dont care about what gets trashed. Can someone help?

Kind Regards,

Leo