Broken images after upgrade from L5 to L6

Questions
1

After upgrading from L5 to L6 in my dev environment, all files in the media archive return 404. What do I need to do to get them working?

Litium version: 6.2.0

2

Images should work after the upgrade, contact support about this.

4

In most cases when items dissapper in an upgrade is that the configuration have been changed. Check the web.config and ensure that filesDirectory and/or commonFilesDirectory is set to correct values.