MarkHutch - 5:18 am on Sep 18, 2005 (gmt 0)
This will not be instant. It will take time to get the pages removed, just like it took time to get them in there in the first place. If you have a properly formated robots.txt file in the root of that sub directory, the pages will disappear from the index over the next few months. However, you will still be able to see the pages if you type in the exact URL via Google. They will just be text links with no description. This is how the removal normally works.