It has a value, and an expensive one, at that. A single wish or permanency is worth more than any mundane armor. While it may be ok to have those spells cast on the VoP character's behalf in-game (I'm really not sure), even then I don't think it'd be ok to walk "fresh" to the game benefiting from any.It kinda defeats the whole meaning of the vow, and leads to lots of potential abuse.
EDIT: Or, perhaps a better answer: If a normal character were starting a game with any permanencies or wishes on him, you'd expect him to have paid for them out of his starting wealth. But the voP character has given up having that starting wealth.