I have tried the AjaxEditor in ASP.Net MVC, and have had lots of issues. I then switched to tinyMCE, a free platform independent - open source editor. It is rich with good set of customization features.
Visit the homepage of this editor control @ below link, and see the customization features and demo pages it offers.
And, you can use jQuery functions on this to extract and input information.
See the number of lines of code that gives you this control. It is skinnable.
Add script reference
Initiate the tinymce control on all the textareas in your form.
mode : "textareas",
theme : "advanced",
plugins : "contextmenu,paste,directionality,fullscreen,noneditable,visualchars,template",
theme_advanced_toolbar_location : "top",
theme_advanced_toolbar_align : "left",
theme_advanced_statusbar_location : "bottom",
skin : "o2k7",
skin_variant : "silver",
Hope this helps.