Question: How Do I Modify Subdirectory Links???

By ‘moved’ you mean that you actually copied the files from the uploads/year/month directories to the root of uploads directory? Or just changed the setting in options/multimedia?

Unless there is plugin that does this, I cannot think of a way to do it other than running a query on your posts table and substitute the old path to the new path.

Right now the images inserted in your posts have an url like: http://www.website.com/wordpress-dir-if-any/wp-content/uploads/2010/09/image.jpg

You need your query to substitute this uploads/2010/09/image.jpg for this uploads/image.jpg in your post_content columns of entries type post and guid column in entries type attachment.

Let me know if you need help with the query.

If you host with cpanel, you need to use phpmyadmin. Are you a programmer?