Change your Text Editor for MovableType Posts

Use TinyMCE to replace your Rich-Text Editor in Movable Type

Here's a link to a Movable Type plugin that will give you a much better WYSIWYG text editor -- TinyMCE.

    http://code.google.com/p/tinymce-mtplugin/

This version works with MovableType 4. After unzipping there is one folder which contains to parts -- on folder goes into /plugins and one goes into /mt-static/plugins.

After using FTP to drop the two folders over to the appropriate locations of your MovableType directory, you can create a new entry, and the Rich-Text editor should have lots more buttons available. Plus, the code created is much more XHTML correct.

It's not perfect, but it works much better than the standard MovableType 4 editor.