Dears there is no restrictions on use of customized menu on branded phone. I have K750i Red 36 Vodafone branded and used customized menu from Top Sony and never have had any problem. Problem faced by mysecell60 could be because of missing menu file or menu.ml or layout.xml file.

mysecell60, can you please tell us that what menu you used and does it include layout.xml and how you installed customized menu on your phone.