here's my take on the parallation thing...

NO.
as much as it seems that the three kids are going to follow the sannin's footsteps, you must remember that in the end, they'll probebly be friends (and hence, not like Ji\Oro\Tsu). so, even though Naruto and Sasuke seem to go with the Jiraya-Orochimaru realtionship, there has to be foreshoadowing to hint that things aren't gonna end like with the sannin. Here Sakura comes in, she isn't gonna train with Tsunade, and her specialty isn't medical ninjutsu but genjustu....


i haven't seen 103 yet (or 102, if you're asking), so i can't comment about that part...