I have a user manual in my site using Drupal 6, Which was created using book module. I use CKEditor as the editor and I want to upload images between the paragraphs. CKeditor asks for url to upload images.
If I am understanding clearly your question, then you want to upload images using ckeditor.
You can use IMCE module which provide the functionality to upload image.
IMCE is an image/file uploader and browser that supports personal directories and quota.
it is very simple with Wysiwyg should just add this module IMCE Wysiwyg bridge go to admin/config/content/wysiwyg/profile/ and edit for example FULL HTML then check IMCE image in buttons and plugins