First thing is to make sure you have a complete registered account, and you are able to log in with the username and password that you chose.
Once you are logged in, you will be asked to add a location. You will be unable to add any records unless you add a location first. This is because all of your outcomes are based around your location at which the surgery was performed. You can have as many locations as you like.
After you have selected your location, simply click on "add record" and start entering your data.
Another reason you may not be able to enter data is if you were on a trial subscription, which offers you 10 free records. After those 10 records have been used up, you will no longer be able to enter data unless you upgrade to the INSIGHTS or paying plan. This can be done through your settings page.
If you have any other troubles entering data please let us know.