Edit your .xml file to point to the directory on the network location for the videos shortcut.

Code:

---

  <!-- my video shares !-->

  <video>

    <bookmark>

      <name>My video share on my pc</name>

       <!-- you can use the following formats: !-->

       <!-- smb://domain;user:password@ip/share/directory/ !-->

       <!-- smb://user:password@ip/share/ !-->

       <!-- if guest/public access is enabled: !-->

       <!-- smb://ip/ !-->

      <path>smb://username:password@MyMachineWIthVideos/my/movie/path</path>

    </bookmark>

  </video>

---

Or press white on the shortcut in xbmc under the videos section to edit it using the osd.