Hi Daniel,
I have been trying to figure out how to allow registered users to place markers on the frontend. There is nothing on the hotspots map that allows for anything - it only shows what I do on the backend. No forms; no "add marker" or "add location" buttons; just the map with backend editing. I am attaching a screen shot of all I get when logged in as a registered user.

[color=#bb4400]I came across this response you had to someone else back on Oct 15 and it is making me think that something is missing:
[/color][color=#4400bb][size=3]"Enable the error reporting and let me know what the error is. Maybe it doesn't have anything with the downgrade. But as I said - frontend submission is part of the PRO package and if you run the core..."[/size][/color]

I went ahead and turned on error reporting to "Maximum" before posting here, and I am not getting any errors reported. I am running Hotspots Pro 4.3.3 on Joomla 3.3.6 stable.
http://netzaritimes.com/index.php/where-are-you I will leave error reporting on if you wish to check it yourself.

Thank You,
Mark