Maybe you need Higher ino trust to go further, did you have all previous training parts on max (what is at the moment for your possible (could be seen trough the shuriken next the task).I did all of that, I trained Ino to the point where I touch her ass, but I still can't buy scrolls except for the first one.
I haven't played 0.4.2 till now, so I don't know if there was a change (but don't think so). But what I can say: Ino's training is seperate from Sakura and Hinato (so you don't need to something with both of them in order to get progres with Ino.
Read the changelog on first page (there stands everything what you can do at the moment, with the 0.4.2 version). YOu can go on dates with Sakura but her or Hinata'S training is not yet implemented.can you currently train sakura? ive given her flowers and done the hospital night thing, but now if i go there at night i can only chat with her, which i can do infinetly