Firstly I am a bit confused as to what is being asked so I thought I would put some information in to show how to set it up… and then troubleshoot. To further assist please expand on what is being asked. Note: if the user is not networked using the username and password shared on both server and client this may be the cause of the issue.
Information Taken from:
<b>Configuring your computer to use Offline Files</b>
To configure your computer to use the Offline Files feature:
Click <b>Start,</b> and then click <b>My Computer</b>.
On the <b>Tools</b> menu, click <b>Folder Options</b>.
Click the <b>Offline Files</b> tab.
Select the <b>Enable Offline Files</b> check box, and then click OK.
<b>You cannot use offline files.</b>
This can occur if the Fast User Switching feature is enabled. You cannot use fast user switching when you use offline files. To disable the Fast User Switching feature:
Click <b>Start,</b> and then click <b>Control Panel</b>.
In Category view, click <b>User Accounts</b>.
Click <b>Change</b> the way users log on or off.
Clear the Use Fast User Switching check box, and then click Apply Options.
Quit User Accounts, and then quit Control Panel.
When you attempt to synchronize offline files, a Resolve File Conflicts dialog box appears.
This can occur if both the offline copy of a file and the online copy of the file has been changed. To resolve this issue, click the file-conflict resolution that you want, and then click OK. If you want to use this same resolution method for all synchronization conflicts, select the Do this for all conflicts check box.