Reading files from Win 2003 Server

Hi, I have a script located on an Ubuntu box and I am trying to read files located on a Win 2003 Server. I have 'mounted', if that's the right term to use, a connection from Ubuntu to Server 2003 and can read the files fine via the desktop, etc. If the Win Server name is say 'WinServer' and the shared directory I want to read from on it is called say 'SharedDirectory' and the user name is 'User', I notice the reference to that folder on the Ubuntu desktop is as follows: smb://WinServer%3BUser@WinServer/SharedDirectory But I am at a loss as to how I should refer to the path for this connection within my PHP script. Any help would be most appreciated. If it's any additional help, I would be using the connection to read files only, and not add/edit/delete them. Thanks Alexis