I finally got this fixed at https://www.hudsonriverinlay.com/ using Egg's solution. Egg, I wonder how you came up with that. Was it just trial and error or is there some principle behind it that makes it work?
Acorn I have no idea why I couldn't get your method to work. Adding htmlblocktext as a name somehow causes the textblock to disappear in the preview, do you have any idea why?
Thanks again to all for your help.