If I don’t miss something Jasper report is a plugin in Servoy 4. I’m developing in 3.5.
I have just a form with parts like in FileMaker, with a title header, header body with a tab in it en so on.
Your other option is to write the report in HTML, then place it in an HTML area field. Or, for better formatting/styling and more control over print formatting I have a plugin you can demo that let’s you create, view, preview and print reports using XHTML and CSS 2.1/3.