Hopefully on the right track now.

Global configuration: Page 1 perfect
Global configuration: Site Tab:
http://help.joomla.org/content/view/51/153/1/1/Change: This facility is ideally used when updating or installing templates, extensions, or data, and do not wish to have your visitors view the site until the changes are completed.
To: This facility is ideally used when updating or installing templates, extensions, or data, and
you do not wish to have your visitors view the site until the changes are completed.
Change (for consistency with usage later on this page): It is also possible to edit the Site is Unavailable display by direct editing of the HTML within the offline.php file in the
root/ directory of the Joomla! installation on the web server.
To: It is also possible to edit the Site is Unavailable display by direct editing of the HTML within the offline.php file in the
Joomla_root/ directory of the Joomla! installation on the web server.
Missing close bracket in: Select the No option to return the web site to normal viewing accessibility (remembering to first check the “Override write protection while saving“ check box within the Global Configuration panel.
Maybe change: Offline Message: When the Site Offline
Yes option is selected the content of this field forms the basis
To: Offline Message: When the Site Offline
field is set to Yes the content of this field forms the basis
Suggest change: Include a link or e-mail address so that the problem can be reported as there is often chance that the site
administrators(s) do not know about it.
To: Include a link or e-mail address so that the problem can be reported as there is often
a chance that the site
administrator does not know about it.
Try changing: %%SITENAME; ?>%%
To: <?php echo $_CONFIG->SITENAME; ?>
That should prevent Joomla! executing the code. If it works then the following Note can be removed.
Link to "Login Form Module" under "Frontend Login:" is broken (maybe hasn't been written yet?).
Change: Require Unique Email: Select whether you want to prevent registration with duplicate e-mail addresses. In combination with User activation this option prevents Users
to sign up several times using the same e-mail address.
To: Require Unique Email: Select whether you want to prevent registration with duplicate e-mail addresses. In combination with User activation this option prevents Users
from signing up several times using the same e-mail address.
Change: Debug Site: Setting this to Yes allows
error messages that are created by the web site's php installation and MySQL database errors to be displayed.
To: Debug Site: Setting this to Yes allows
PHP and database error messages to be displayed.
Change:
If allowed, in the Frontend User Params setting above, Users may still select their own preference, but until they do then this is the editor that will be set for them.To:
If Frontend User Params (see above) is set to Yes then Users may select their own preference, overriding this default selection.Change: The image
is - by default - called favicon.ico and is located in the
Joomla! Root/Images directory of the installation.
To: The image
is, by default, called favicon.ico and is located in the
Joomla_root/images directory of the installation.
Note the lower case "i" in "images". Probably irrelevant on Windows machines, but important on Linux boxes!
Phew! Hope I'm not being too picky.

Regards,
Chris.