How to get image file which are created using system task?

Thils

Hi all,
I am using MB webservice API in java. I want to create a system task in Mediabin which gets automatically executed when we add an image asset into mediabin.
and also How can i retrieve that image which are created using the system task.
Here i can get Original image asset from Mediabin. But couldn't get the image which is created using system task..
How can i do this. Kindly somebody look into this..

Thanks & Regards,
Senthil