There are various ways to add a round. Hover the mouse over "Profile" Menu then over My Rounds and then click "Add Round". Select the course you played the round in from the Pull Down menu. Here you will see all the courses that you have added to Favourites. If you want to add rounds for one of your friends then select the Friends User name from the second Pull Down. Then click "Continue". You will be taken to round addition form where you will need to select the Teebox first. Once you select Teebox you will the scorecard load for that particular Teebox, where you can enter Hole by Hole score. You also check checkboxes for Putts, Fairway etc. to add these details. You can see stats for all the details that you enter.
To View rounds, hover your mouse over "Profile" menu then click "My Rounds". You can filter the rounds by date and by courses.
To Edit or Delete rounds, hover your mouse over "Profile" menu then click "My Rounds". The click the "Edit" link near the Date field in the first column of the round you want to Edit or Delete. To Delete click the "Delete Round" button at bottom of the page and to Edit, make changes and click the "Update Round" button.