Thanks for trying to help, both of you. But nothing was able to work until I could figure out the very first step, which is to edit a hidden file on a Mac. If I were on a Windows machine I would have had this resolved a long time ago!
As it happens, I finally had several hours to donate just to this issue (hoping it will save time down the road), and I finally figured out, first, how to reveal the hidden files on a Mac, and second, how to edit them. Now that is done, I am Golden!
Since no one else on the board seems sure how to go about that - or it's so basic that no one can believe someone could be that dumb which is more likely
- I thought I would lay out all the steps from beginning to end so it would be available in case someone else needs it. So here are the steps for setting up a FlashAir on a Mac:
1. Show those hidden files in Finder by opening up Terminal (in a Folder marked "Utilities" in Applications). Then type in (or copy and paste from here:
defaults write com.apple.finder AppleShowAllFiles TRUE
Hit the Enter button, then:
killall Finder
2. Go to Finder, click on your SD Card, now you should see the WLAN folder and under that, the CONFIG file. Now, after finally figuring out how to reveal the hidden files - took a lot of Google searching because apparently Apple doesn't want to make it simple, like giving a GUI option to just "show hidden folders" - this part got really tricky, for me anyway. The only thing I could find on the Internet was putting in complicated commands via terminal or script editor. I would right-click on the file and just click open which made it open with Script Editor and that was just a mess. I was about to give up, but then, after reading a bunch of postings here again about all that, I tried again but this time I tried opening with "Open With", "other", then found TextEdit. Bingo! Then all I had to do was follow the instructions I found here:
apneaboard.com/forums/Thread-WiFi-SD-Card-Data-transfer-to-ResScan-SH-for-The-Rest-of-Us
...and that was basically it. I never could get SleepMaster to work, but FlashPap works fine. I will say that after messing around so much in/on the FlashAir card, I saved the Data logs, but then formatted the card and started all over from the beginning with FlashAir Tool and FlashPap.
After I was done with all that late last night, I put the card in my machine and when I got up this morning, was able to start FlashPap and it found my files right away. I've checked a few times throughout the day and every time, FlashPap finds it and I don't have to touch the card at all. The FlashAir program can't find it, but FlashPap can and that's all I care about it at this point.
Anyway, I'm thankful for all the help that is available on this board, bits and pieces of all of it have been helpful in different ways!
Oh - and P.S., if you want to hide the files again, you go to terminal and do everything you did to reveal the files, except in instead of "TRUE", you put "FALSE" and all the files will be hidden again. I'm leaving mine revealed though, because no one gets into my laptop but me.
BTW, if anyone is interested, I have an early 2011 MBP running Yosemite.