Lao Che-
This seems to be a Hotmail problem; after testing, we have no problem getting password reset and other forum emails to show up for other email providers. Looks like Hotmail has decided to block emails coming from the boards (or perhaps it's in spam - Hotmail has a pretty aggressive spam filter, so make sure you've checked there too).
All I can say at this point is if you want to reset your password, try changing your account email address to a non-Hotmail provider and you should be able to receive your password reset email without it being blocked.
Chase