thanks Ray, i had to do the same. Got almost everything working in sandbox, went live and spent untold hours trying to figure out why things stopped working - subtle code changes but was hell.
On a side note - if people are getting payment processing errors - double check the product listings titles - there are certain words that PayPal blocks as potential spoofing - fought "Limited Edition" for hours.. finally figuring out that was the issue
Phone numbers are now pulling ok.