Mine doesn't show on the first screen - I think that's because I've filled up that screen with actual progress! If I click on the arrow to the right to view my progress in the future, the red line (actual progress) vanishes and the blue line (predicated progress) appears.
Have had a look and mine wasn't showing either - but I scanned the FAQs and it seems that it works out the predictive progress from the last four weigh ins, so that maybe why it is not showing yet - maybe it will show from your next weigh in??