You need to write some ABAP code to fill in the fields, if memory serves. This has been discussed on SCN before and it's covered in SAP Notes as well. Please search before posting. I had a similar requirement some time ago and was able to complete it without posting a single question on SCN. All the information on this is already available online.
Also the field names are off, as Veselina noted.
Z001 is a custom output type and I cannot know what are your settings (e.g. what form you use for replacing texts), but there is no EBELN field in VBAK in my system, there is VBELN :)
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