I had problems with accessing a protected file (a Numbers document) after installing Lion. I could open the file, but could not lock it. Read the Forum and upgraded to Esp 12.8.13. When I tried to open the same file, a popup said the file was corrupted. Tried to use Time Machine to recover an older version of the file and received an error code 8084. The file has now disappeared from my Time Machine records and is not shown in Finder or Spotlight. Time Machine shows that within the protected folder there are three sub-folders: 1) contains encrip data, 2) controlled by Esp and 3) Do not modify in this state.
When I run Esp, I can type in the password and see the folder where the file resided. I placed an old version of the file in the folder as a test and it is protected and runs when I put in my password.
Help is appreciated. Dave