i do the same and also add a link to the live website as well as cross linking to a gallery if thy have one...
it really is very easy to do.
all you have to do is open the admin.dwt.php file (found in the Templates folder) and adjust it there.
This is an example of one I have modified:
<div class="right">
<?php if(WA_Auth_RulePasses("Super Administrator")){ // Begin Show Region ?>
<a href="../admin_cms/manage_users.php">Manage Users</a> |
<?php } // End Show Region ?>
<a href="../../index.php" target="_blank">View Live Website</a> |
<a href="../../webassist/kfm/index.php" target="_blank">Uploads</a> |
<a href="../../gallery/">Gallery</a> |
<a href="../admin_cms/contents_search.php">Advanced Search</a> | <a href="../admin_cms/users_login.php?logout=1">Log Out</a></div>
</div>
if you wanted to create a page with your own unique content then just create it and ad a link to it in this area.
Remember to make sure that, as you want it to be visible to your client, your new link isnt surrounded by the show region (as it does with the manage users link above
hope this helps but if you want any more help just let me know
have a good weekend
Jamie