Default print layout

Hi, i need some help.
I have a CR2008 form that print sales quotations, with big pictures. To run it i need input the sales quotation number, this part is easy. The quotation number is validated with Oqur.Docnum
But i want use this form like a default layout for sap sales quotation, using the layout designer.
I need know how i do for cr2008 without input any number retrieve the sap sales quotation.
Any help i will appreciated.