Thanks dreamerz & Cyrn,
I signed up over at ComCentre, only username on the service contract. The modem instructions says both username n pw is in service contract :dunno:
Anyway last night I checked my mail box, and there is a letter from Singtel with the username n pw.
Tried it but still can't work, so must be due to no dial tone problem. Gotto check wif my contractor & Singtel on it.