By "corrections" do you mean the page following the original article showing the capacitive voltage divider for picking up the sample off the last i.f. stage?
In the July 82 issue there is a short note correcting the Figure 4 schematic in the original article. Pin 3 of IC8 should be connected to Pin 11 of IC2 and not Pin 10 as indicated on the original schematic.
In my notes from the internet I also have a line that states the Envelope Detector position of switch S1B should be at ground instead of having no connection as shown in the schematic.