Weird.

Try debugfs, which you can grab (temporarily) from here.

To use it on your empeg, do something like this:

./debugfs -w /dev/hda4

rm /fids/_00022/531

quit

If the rm (above) fails, then try the freei command, and if that fails use the unlink command. For freei, you'll first need the inode number, which you can get (before running debugfs) with ls -i /drive0/fids/_00022/531

Good luck!

-ml