1) PT3 does not support the "auto center" option (PT4 does) so you will need to preferred seats for each table size you play. Make sure that your settings match between PokerStars and PT3. Please review the
Preferred Seating guide for more information.
Please note that if you have the Memory Grabber option enabled then while you're waiting to post the blinds PT3 doesn't know you are at the table so will not rotate the stats. Do NOT reposition the stats until after your first PLAYED hand has been imported or they will be rotated to the wrong places again at that time.
2) Make sure you select the correct Hud profile (that you're using at your tables) before making the change, and that you OK or Apply the change.
Again, for PokerStars observed hands PT3 doesn't know that you are the hero so you may see your lifetime stats until after your first played hand has been imported.