I have extended the CQWP and have several custom web part properties. One is a text field named "Header" and I would like to use it for a header in my CQWP. I know that I need to edit ItemStyle.xsl (I've done this fairly often) or add a new xsl file and reference that. In the past I've referenced the web part title by using and adding in in the ContentQueryMain.xsl
My main question is how do I make that custom Header web part property available? I've seen several posts about Parameter Bindings, but am unsure where/how to use this.