4.1 Return to the page, and select the edit option to edit the page.
4.2 Then select the option to Edit Raw HTML.
4.3 Once that the html for the page is displayed, you should try to locate the place in the page that you want the form to appear.
4.4 You should then copy the code from the text file in Notepad (or the editor you are using) and paste it into the location in the Raw HTML of your page. You can then Publish the page.