That was the plan but I needed to know DaV's user set up before proceeding.
These insructions apply to Windows Vista.
For a single user machine the process is pretty straightforward as there is no need to implement file shares.
It goes like this
Right Click on the Firaxis Games directory in the C:\Program Files path and select the Properties option. In the first tab labeled "General" are two checkboxes at the bottom - one is labeled Read Only and should be greyed. Clear it so the check box is empty, then click the Apply button. A dialog box with two radio buttons will appear, select the all folders, all subfolders and all files button. Click okay and

and
This will take a while as the machine processes all those files.
When that has finished in the same Properties dialog box click the security tab. In the scroll box labeled Group or user names you will find various names. Click on Users.
The scroll box at the bottom will show all Permissions assigned to the Users group for this set of files. If the permission do not include Full Control click the Edit button just above the scroll box. That opens another dialog box that allows you to change User Group permissions. Select the Users group in the upper scroll box and then check the Full Control check box in the lower scroll box. Click Apply. Get some more
You should be good to go.
For a Vista OS with multiple User accounts you also need to set up Sharing on the Firaxis Directory in the Program Files path, the Civilization 4 directory and the Mods directory and the HoF Mod directory.