Image src removes url part for current site using freetextbox - how to avoid it?

[Draxofavalon]

I have freetextbox control (freetextbox.com) installed in a web site, let's say mydomain.com and when I try to add a reference to an image it then removes the url part and leaves a relative url. I need to AVOID this as the whole point of this functionality is to provide a template for sending emails.So my customers receive img src="http://stackoverflow.com/images/logo.png"When instead they should receiveimg src="http://www.mydomain.com/images/logo.png"How do I avoid freetextbox to "optimize" my url and not remove the domain part?Thanks,Xavier