I will guess that you are running the report from a layout based on the Help Topic Table. You need to run the report based on a layout from the Help Detail table.
Set up a report in that table, with a sub-summary by Help Topic ID. Show the Body part below it. Sort by Help Topic ID, and you should have what you want.
You have a leading sub-summary part with the Help Topic Field in it, and a body pary with the Help Detail Record in it, but the Detail field is actually a pixel into the sub-summary part, so it printing in tandem with the Help Topic.