There was a time when all I had to do was go to “view orders” and click on the tracking number of an item that I bought. It would then automatically open 17track and have the tracking number already inserted.
Has something changed? Now when I click on the tracking number it opens 17track, but I have to manually copy and paste the tracking number in the search box. Am I missing something? Yes, I know, first world problems. I admit, I’m lazy. 
I’ve noticed this too… but now, if you just hover over the tracking number it will pop up a small window with where the item currently is and where it last was. I’ve also noticed that even that feature will take a couple of days before it actually does anything. So if you hover and don’t see the popup, like most things from China, just give it a few days more and it should be there.