Statistics Counter HTML code - How TO

Hey all,
exactly WHERE/&HOW do I paste the website statistics HTML code provided by my CPanel ???

How do I access the HTML source code for the page so I can post/add it??
Can I do it with the sitebuilder ?? (Dont see a tab for viewing HTML source code for editing)

OR …
do I have to download a backup of the page, edit the HTML in a WYSIWYG source code editor (eg. Kompozer etc.)
, save it to disk and then re-upload to my website.