I answered you in the thread below and you did not come back, if your data is from one SQL Server to another is no requirement for admin permissions you just need to ask your client to create a proxy account from an admin account. You need to go step by step to find out the point of error so you can resolve it.
http://www.sqlservercentral.com/Forums/Topic770010-324-1.aspx
Kind regards,
Gift Peddie