I tried to track a parcel I am due. Entered the tracking number (this has happened before) but it is bringing up like pictures - saying - click onto all the cars, click onto the road signs. And it must have gone into about 4 pictures and I gave up.
You will get the hang of it. As someone says they are a way of checking that you're not a hacker. If you do it wrong they give you a different set of pictures. Don't despair Jenny!!