It looks like a whole bunch of entrants have the same issue, in which everyone towards the bottom of the standings has 0 points. While I was making my picks, I clicked "save" once I was done and then I got a message saying I was signed out after 20 minutes. So even though the system told me my picks saved, they never did actually. It's unfortunate for us whose picks never "saved," but I guess lesson learned for the next Slam.
As far as the site goes, the older one was far superior, with What-Ifs and such. At least that one didn't auto-log off after 20 minutes.
Would also like to thank Tennis Warehouse for giving us all this opportunity at each Major.