yeah im not sure either, cos im only goin there tmr for an assignment, and it's so confusing.
i tried streetdirectory which lead me to an address at Pasir Panjang... told me to get to Harbourfront MRT and take a bus...
hmm... pardon me but isnt Harbourfront like... near the west....:dunno:
yeahs snowman is right. or another faster way for you since you staying at amk. drop at bedok and it's almost the same distance of busride from tamp. it will be faster for you and save u the time to travel from bedok to tamp by mrt. btw i think bus number "2" also goes there from bedok interchange =).
Maybe try to board MRT from AMK to Yio Chu Kang station. From Yio Chu Kang station, board bus no. 72 which goes to Tampines Interchange. At Tampines Interchange, board bus no. 31. It will save a long train ride from AMK to City Hall then to Tampines.