Iphone messenger app no longer alerts?

It no longer alerts or shows a banner on the iPhone screen. This happened once before and I reset the app and that fixed it. It did not work this time. I would like to know how to fix this Never know when someone is trying to message me without checking all the time.

Iphone 4 themes? NO cydia. How to use winRAR?

I found this theme online for my iphone 4, factory unlocked, that i really want to use. When i download the file it opened up on winRAR. I have no cydia and i have no idea how to use winRAR, is there a way that i can add that theme to my iphone using winRAR?

IPhone 4S searching for Wi-Fi?

I turned my phone on and instead of saying Verizon 3G at the top like always it says Searching… And the Wi-Fi symbol thing. It's connected to Wi-Fi (I'm using my phone to ask this question lol) but it still says searching and I don't know how to fix it.

Iphone and ipad are almost the same thing.how do put both of them to different uses?

I have an ipad since a long time.recently, i bought an iphone. Now the problem is, both of them are basically the same, as far as its uses and apps are concerned. I can do whatever i did using my ipad, now with my iphone. Can anybody please suggest me how i can put both these devices to different uses? Or atleast make sure of these are left unused?