webjunk

@mjblake
If you want the title that is displayed within the page then you need to edit either (depends on theme used) header.php or the template for the page such as page.php.
Should be something like:
<h1 class="entry-title"><?php the_title(); ?></h1>
and change to something like:
<a href="mysite.com"><h1 class="entry-title"><?php the_title(); ?></h1></a>

Check the User accounts in WP-Admin and see if “Disable the visual editor when writing” is checked.
Try deactivating plugins.
Try the default theme.

When you say the see a different editor. Do you mean they only get the HTML not the visual editor or an entirely different editor not native to WP? IF you log in as one of those users to you also see a different editor?

Why not contact the author directly? Ask if it is okay to remove and if so how. For the right reason might be fine. Some will remove it with a small donation.
Please realize that some of us spend quite a bit of valuable time creating and supporting these plugins. The least we sometimes ask is to have credit given where due. If you do not like the credit link for whatever reason then try a different plugin. Or write one yourself. Or try a commercial plugin.

Try renaming the plugins directory. Create a new empty pugins directory with the same permissions as the old.

You might want to read:
http://codex.wordpress.org/Roles_and_Capabilities

Maybe you want a plugin like:
http://wordpress.org/extend/plugins/capsman/
There are several other plugins

Try disabling each plugins to see if there is a conflict.
Also try disabling permalinks.

No idea what you are doing. But does this involve a plugin?