Take/put file to server (fileCopy)

I have a server for VB application which is protected with username and password, I want all clients can take/put file to a folder in server.
the clients not in domain...

I have code for put the image to the server like this :

Code:

---

    nameDir = "\\IP server\Folder"
    nameImg = Text1.Text & "_" & Text3.Text & ".jpg"
    FileCopy Text49.Text, nameDir & "\" & nameImg

---

and this for show the image

Code:

---

    strImg= "\\IP server\Folder"
    Image1.Picture = LoadPicture(strImg & "\" & rst!image)

---

this code is working if I logon to server before...

pls help?

help me pls? :confused:

what type of server, local or WAN?