profiles

How do I make roaming profiles work with windows 98 clients and an NT server? I have created different profiles for the users through the passwords applet in the control panel. My system policies worked, what do i have to do for the roaming profilesto work? I also adjusted a key in the registry for the same but it didnt make a difference. The key was HKLM/SOFTWARE/MICROSOFT/WINDOWS/CURRENT VERSION/PROFILE LIST and HKEY_CURRENT_USER as well as the HKEY_USERS hives, but nothing has worked yet. What can i do?