Perforce can be confused if you learn from the wrong sources.
It would be good if you could post the errors your friend is getting.
All you need is an IP and a Username to connect to the perforce. If you set up password then it is also needed.
- P4Admin is the administration software for the perforce server.
- P4V Is the visual client that you have to use.
Where is your friend failing? Connecting to the server, cloning the depot?