[Zope] product development help and tips

Hello, I m developing a product that will do the following: My form has the following: ID, TITLE, FILE fields to fill out. After I have filled out the field, I click submit, I want to create a folder with the file I uploaded within the folder. My folder name will be the id, and the file id will be the file name. Currently, I am able to use my product to create a folder and a file, but I don't know now how to put the file within the folder. Help and tips would be greatly appreciated. Thanks