So i upgraded to 220.127.116.11 i noticed my custom field on order form was failing.
so i tested and when i updated the billing.phtml i couldnt see any updated changes.
The i found out as of 1.6 persistent cart was added, so i copied across /www/app/design/frontend/default/amber/template/persistent/checkout/onepage/ files into my custom theme.
If i edit the billing file in the persistent template the text shows up. But if i disable persistent in the admin area, its still pulling the billing.phtml template from the persistent folder.
I cant get it to use the normal /www/app/design/frontend/default/amber/template/checkout/onepage/ billing.phtml file *which is needed for my custom field mod) even with persistent disabled in admin