Please note:
1. WebService is generated out of a Function Module with Tables parameters
2. When you test the function module, in the output of the function, you will see that the tables parameter will have two entriies - one input and one output with the data retruned the function module
3. This second output will be the response in the web service
4. so to display the output in the adobe form, create one more subform and drag and drop the response from data connection in the data view