FAQ's can be viewed here.
http://wgt.com/help.aspx
Here is the info on replays....
After hitting your shot, while you are on the Scorecard page, click the button that says View Replay and then click the Play button to watch the replay from any camera angle available. You can also save your replays and share them with your friends!
If you have saved any of your best shots, they will be displayed on your Profile page and can be viewed again from there.
After watching the replay click the Save button to save your replay. You can save up to 10 shots to watch over and over. Your saved replays can be found on the Replays tab of the Your Profile page.
After watching a replay you can click on the Share button, enter your friend's email address and a personal message and click the Send button. Share your best shots with your friends and challenge them to see if they can do any better.
You can save up to 10 replays.