I wont be able to take a screenshot until Friday Ill try and explain for now.
We click on "my computer" then can click on networks. Then several networks appear (blue computer icons). Lets say the network is called "Dogs", we then double click that icon and then several shared drives appear or they may look like folder icons I think. To get into those shared drives/folders, users need the username and password.
If a folder/drive is called "Director" then Director is the username they need to enter, along with the password. There are other ones listed too, which require a different username.
On some computers Ive noticed when clicking my computer instead of going to networks,.... on the left side panel they can enter a drive by clicking on a list of drives shown, and they do have a drive letter. I dont think its like that on every computer though, they may need to enter by first clicking "networks".
Without having it in front of me, its a little hard to be sure exactly what it looks like.