Lot of softwares use on screen help (picture layer) that shows up when help button is pressed. i thought about using the same thing with labview VIs to give a more User friendly UI.
the attached Vi will show Help/instruction on how to fill up the login form when help is pressed, the help will hide if red cross button is pressed.
Creating the picture layer will require some image editing software like GIMP http://www.gimp.org/. or photoshop.