Here's the first part of the comics update in SG #60 from May 1992. Part of it references where we currently are in the slideshow and goes beyond to some things we haven't seen in the slideshow yet:
Given that a certain someone was involved in the creation of the map of the Collinswood estate, it should come as no surprise that there are a few things off in it because, well, just look how well that person co-edits the PomPress books...
And we know for a fact that Lysette Anthony would have played Laura. In fact, when her casting was first announced in Soap Opera Digest, Laura was actually listed as one of her roles...
And David Campiti's explanation about the Barrettstown sign comes across as a bit disingenuous. But as anyone's who has read his explanations in the letters column probably grasped, that's pretty much par for the course...