The problem is, if you want to host a page on the LTM, it needs to act as a web server. The main page (HTML) would be the first response, and the browser asks for all references (like images, css, etc). Check out this article, which gives a way to host a page with images on the LTM, but my suggestion is to setup a couple of "sorry" servers that you can redirect to. It really makes things easier as you can manage the html content easily, instead of encoding it special for LTM.
http://devcentral.f5.com/weblogs/jason/archive/2009/05/12/host-that-sorry-page-on-your-big-ip.aspx
DeVon