I wrote an apple script to change permissions on files. It worked great until 10.5.8 came out or it could have been the security update. I save it as an app and drop files on that i want to change the permissions on.
Here is the script.
on open (theseFiles)
repeat with thisFile in theseFiles
do shell script "chmod -R 777 " & quoted form of POSIX path of theseFiles user name "MacAdmin" password "Password" with administrator privileges
end repeat
end open
Model: MacPro
Browser: Firefox 3.5.3
Operating System: Mac OS X (10.5)