Hi stephen,
Sap will provide you batchdeployer tool , (i think no charges).
You can follow below sap note 1794179 - Importing AS Java Core patches for NetWeaver 7.1 or higher based products.
Sap has recently released a note for batchdeployer request.(I am not getting now).
Can you please paste the log for defaultrace , i just to see error , is with offline tool or not.
With Reagrds
Ashutosh Chaturvedi