how to get GUID in DO_INIT method

Hi All,

I have a requirement to default the CC mail id's when a follow up email is created from complaint i am trying to acheive this

by redefining DO_INIT method and created a new method set_CCmailid where i am trying to call order_read to get the partner

functions and their mail id's.Plz let me know how should i get the guid to pass to order_read and attend functionality.

Thanks.