SaveForm

It allows saving web pages completely - including filled forms, flash, movies,

SaveForm  Review

SaveForm is an Internet Explorer add-on for convenient saving of visited web pages. It allows saving web forms' content. For instance, you can enter some text on a page and then get that text saved along with the page source. Movies, flash, images, etc. are also saved along with page. Optionally, you can set the datestamp to be automatically added to the file name. Web pages can be saved in both mht or html formats.