Quicktags help link?

Hello- On the WRITE POST form, (Default/Kubrick), there are default links to WordPress.org support pages for help on items such as “Title,” “Categories,” and “Post.” I have created my own help pages within the overall website and I would like to change the link from WordPress.org to my own pages. There was no problem accomplishing this by changing some of the references in admin/edit-form.php, however the link to “Quicktags help” eludes me. I didn’t see it in edit-form.php. I have looked through seemingly all the admin files and cannot find the link I would like to change. Can someone please point me in the right direction?
Thanks so much!
DB!