Moving site, how to make Drupal recognize location of files directory?

Any help would be appreciated.

My original site was using the sites/default folder.

I created a test site with it's own database and Drupal codebase in a new directory. The test site is a sub-domain named test.example.com and there is a folder sites/test.example.com in the new test install.

I decided to copy the original sites/default/files directory into the sites/test.example.com/files directory and I logged in as user 1 and changed the Administer>File system from sites/default/files to sites/test.example.com/files. I then deleted the files from the default directory.

Now, all the user pictures that were previously visible and pictures included in nodes do not show up. I would have to go in and individually edit each one to the new directory location. Is there a simple way to do this in Drupal? Or do I have to update the database?

Thanks,

Izzy