PSE 8 Licensing problem on Mac with OSX 10.8.4

Question

Hi,
Trying to edit some Aperture pics with my PSE 8 on my Mac with OSX 10.8.4 the following messge appeared: 
Then found I could not open PSE independently of Aperture (version 3.4.5) - and kept getting the same message each time.
Not sure of the current state of my PSE 8 but my Applications Folder shows me the following:
So far as I am aware my PSE * has been kept fully updated using the Mac's automatic updater.
I have had this PSE * since new, just after its first appearance and registered it with Adobe immediately.
It has worked fine but my latest experience may be the first time of use since updating to Mac OSX 10.8.4. Not sure.

Answer 1

Barbara B,
Thanks for your response to my cry for help. I do not understand what is going on with this "Licensing has stopped working..." business but I have tried to implement the solutions you offered without any success. My attempts are detailed below:
Solution 1: Could not find FlexNet Publisher folder by the method shown.
Solution 2:
Found and deleted the Flexnet Publisher folder.
Downloaded the Adobe Licensing Repair Tool ( = LicenseRecovery 111.dmg)
Run License Service Update (bearing in mind this is intended for MacOSX 10.7 and not 10.8 which is my system), as follows:
Double clicked  this 111.dmg to get Volume (folder) LicenseRecovery 11.6.1 and opened the folder to locate LicenseRecoveryLauncher.
Got to Terminal and opened it.
Typed sudo python with end space and dragged LicenseRecoveryLauncher app      in and hit Return.
(Was not sure at all what was meant by the" path to the APP file").           
Text and Password: appeared. I tried to enter my password but the screen remained totally unresponsive.
I hit return and tried to enter my password again - but no characters appeared as before. Hit Return and text appeared seeming to indicate some error. (I have no idea what is going on - the use of Terminal is totally strange to me.)
Cleared all from terminal using Edit and tried all this a second time with the same result. A screen shot is attached.
Hence had to abandon Solution 2.
At this point I saw the further solutions and decided I was not competent to use these and so suspended my attempt to get my Photoshop Elements 8 running again while I consulted Adobe further for a more user friendly approach.
I do not know if there is any other approach you can offer to make my PSE8 come to life again which does not involve a more detailed knowledge of computer management than I possess but I should like to know, in simple terms just what has gone wrong with my PSE8 that stops me using it.
Could you please answer my questions below?
Is the "Licensing" thing a problem with Adobe or with Apple or with a third party?
If the License is something issued by Adobe on original purchase, cannot Adobe simply issue me with a new license?
Do I have to buy a later version of PSE in order to use it again - and if so what guarantees do I have that the same problem will not arise in a few years' time?
Best regards,
Reg Phillips