Welcome bananas! Some additional advice on introducing formula, not that I think these are actually your problem (think he's smelling your milk too much most likely). Temperature can be an issue (bm is nicely warm) and also some babies prefer ready made formula to the powder ( think it's to do with consistency.
Num we phased out the bottle nearer the 18 month mark - DS liked it for morning and evening milk at home (despite giving it up at nursery much earlier) but he had water from a dippy cup, and was even very good with a normal cup long before his first birthday! I figure that can be played by ear, as long as the child is at least able to use a cup, and isn't getting juice in a bottle (also my pet hate along with dummies!).
Poor Kate! The whole world watching, and a heat wave to cope with! I just hope she's found MN and preferably a group forum, so she gets proper advice, especially on breastfeeding!