File browse CCK field
Try the IMCE for FileField module. I've tested this module and working fine. It seems this is the module what you're looking for


  IMCE for FileField allows users to select files from IMCE File Browser. It supports FTP uploaded files by automatically registering them as IMCE files thus making them usable in a FileField.


Step-1:

Go to your filefield settings and Enable 'Allow users to select files from IMCE File Browsers for this field



Step-2:

Go you Manage Display settings of your content type and select FORMAT as URL to file



Step-3:

In node add / node edit form you can browse the previously uploaded files (from server) by clicking on 'Open File Browser' link.



So the file link will be displayed at node output for the uploaded file.