Sheyne, as you requested, for the first time ever, I tried the merge function, and now your two threads are one. What I didn't understand would happen, til after I merged them, is that it melded the threads, sorting all the posts by date, so that the two threads are now mixed into one, all posts in chronological order. Hope that's okay. Seems to be, in this particular case.
I also changed the subject line of your first post to reflect the merging - temporarily, of course, til you change it to whatever you want it to be.