Hello,
If you are using LabVIEW 5.1 on Windows, you can use an ActiveX container to display an HTML document on the front panel. I have attached a simple VI (saved in LabVIEW 5.1 format) that demonstrates how to do this.
You can read the LabVIEW Help for more information about using ActiveX containers in LabVIEW.
Good luck,
-D