Let's first try the simplest least action method:
1. Launch Terminal from your Utilities folder
2. Type this command:
sudo chflags -R nouchg
That's a "super user do" type of command (making you Mac God while the command runs), a space, then the actual "change flags" command, a space, then the "recursive" option (change everything), then the flag to change (in this case we want "no unchangeable" to remove the lock), hit space again, then drag the item you want to remove into the Terminal window and drop, then press the Return key
3. You will be asked for your admin password, type it in very carefully, because what you type is not echoed to the screen in any way whatsoever--you will also receive a little lecture about being careful the first time you use a sudo command
4. Press the Return key again, the command executes and you are returned to command prompt
It will all look something like this:
NoobiX:~ francine$ sudo chflags -R nouchg /Applications/Eudora.app
Password:
NoobiX:~ francine$
The application and all its hidden sub-folders should now be unlocked, and you should be able to Trash it.
Francine
Francine
Schwieder