Thats how you disable firewall/icf. (In control pannel)
Do not use the wizard! The wizard sets unnessacary file permissions under NTFS formatted hard drives (which I'm sure you will have) so that file sharing can't be done sometimes. In my experiance, 90 per cent of the time using the wizard makes it so that file sharing cannot work at all.
Just a few months ago after a reformat i went to set up file sharing and accidentally used the wizard and was unable to get it working...i had to re-reformat and NOT use the wizard...worked great lol..
So...just enable file sharing, doing so does not change the permissions.
After you do everything on that site, make sure that the computers are in the same workgroup.
Then, everything should work out okay.