Fetch the attachment and notes for salesorders

Hi,
I am trying to fetch all the information of a sales order for a given account id.
I am using the following method to fetch the information:
https://crm.zoho.com/crm/private/xml/SalesOrders/getSearchRecordsByPDC?authtoken=XXXX&scope=crmapi&selectColumns=All&searchColumn=accountid&searchValue=YYYY

By this, I can able to fetch all the details about that particular sales orders. But I am unable to fetch the notes for that sales order, attachment details. How to show those information?
Even, if there is any attachment file, then how to show that image?

Regards,
Srimanta