No problem tuncatcher. One other thing you can do, and this is pretty handy if you're really not sure of the state of CIFS is to run the JMX console. Log onto the machine you've installed and are running Alfresco on. Open up Command Prompt (Start > Run > cmd) and navigate to the java directory you're using to run Alfresco, in the java > bin folder run an app called Jconsole.
You should get a window, click on the Remote Process radio button, and put the following in the text box: service:jmx:rmi:///jndi/rmi://localhost:50500/alfresco/jmxrmi. In the Username box type controlRole and the password change_asap (these are the default values, so if you've never used the JMX console before this should work). The JMX console allows you to see the state of Alfresco and configure many of it's subsystems while the application is live. It also allows you to configure logging for different subsystems. So if you click on the MBeans tab, open up the log4j folder and scroll down to org.alfresco.smb.protocol. Open up this folder, and click on ATTRIBUTES. You should now see two fields, name and priority. Priority will be coloured differently meaning this is the only one you can edit. Change the value of this field to DEBUG. Then when you start Alfresco, you should see more logging related to CIFS, such as if the CIFS server is broadcasting and what port.
JMX console can be used for a wide variety of stuff within Alfresco, it's something handy I wish I knew about right at the beginning to be honest!
bengrah