Why arent my Iphone apps giving me notifications?

[Liz]

I just got the Iphone 3g on Monday, and downloaded the new software update - I downloaded the facebook app and some other apps but none of them are giving me notifications when someone comments, or when new apps are posted on the app store. If you still don't know what im talking about, its the little number next to the application that is supposed to show up when a new notification is posted. Is there a setting I need to change?

[HAL]

you sadly must open them to update/find out if you have notifications :/ bummer, I know. I wonder why they don't do it automatically

[T.W.]

that happens to me, but with the Myspace app. you probably need to log on in order to see the comments or notifications; for me notifications only appear when i log on from the app.

[Joe]

Go into settings and make sure notifications are set to on for the ones you want. some things just don't push, even though you'd think they should or they say they do.