A web-based filemanager is available on:
Login with your regular CS Username and Password
You can mount your home-folder as a harddrive in most operating systems
Note: This requires using a Service Password for WebDAV
See detailed instructions for how to set this up at:
|WebDAV Connection Details|
|Username:||Your CS username|
|Password:||A service password for WebDAV (you can't use regular CS password here)|
FileZilla is a open source file transfer application, available for Win/Mac/Linux. Download the client from FileZilla Project, or from your Linux distribution.
Check File->Site manager and add a New Site:
WinSCP is a similar tool, but only for Microsoft Windows.