You can use it to access and modify the files and directories on your server via FTP or direct file access.
eXtplorer runs natively under Joomla! 1.0 - 3.2 and can also be used as a standalone app.
extplorer directory is not chmodded to 777
(so chmod to 644 or 666)
I've tried all the suggestions that others have put up below but without success.
This awesome component is the salvation! Should be a Joomla! Core component in the next release! :) Cannot recommend it highly enough! :) Great work!
Everything is there at hand reach. Wonderful.
For those who have problems, you need to also make sure the administrator/components directory is chmod 755.
for some reason, mine had changed to 644 and I was getting the same fetchscript.php error message you are mentioning.
Great job guys.