SL10.1 +php5 + Apache 2 + Mysql 5.0.18 + susgar 4.5.0f

After installing ZuckerDocs I got the following message

Including: /srv/www/htdocs/sugar/cache/upload//upgrades/temp/001Bsp/scripts/post_install.php
Please follow these steps to complete installation

* Add the line at the very bottom of the "DetailView.php" in every module you want to have documents managed by ZuckerDocs
* You will find a new "Documents" section in the DetailView for those objects

Module Install Successful

and

including: /srv/www/htdocs/sugar/cache/upload//upgrades/temp/DoAp6P/scripts/post_install.php
Please follow these steps to complete installation

* Add the line at the very bottom of "modules/Emails/DetailView.php"
* Add the line at the very bottom of "modules/Notes/DetailView.php"
* You will find the "Import into ZuckerDocs" buttons at the Email- and Note-Detailview (only if there are attachments available)

Module Install Successful


that I am not able to well understand.
What should I add, in which file?
Thank you