My iMessages are sending as emails not my number?

I have a iPhone 3GS and my iPhone iMessages are sending as emails, and I only have 1 receive at which is my email address and I have no caller id to add another one and i tried turning iMessage on and off what do I do

Added (1). When i turned my iMessage on and off I didn't work

How to change your profile picture on Tumblr?

I'm new on tumblr and I'm using it off my phone witch I've found a lot more complicated than the desktop… But I have no choice… Anyways I just started actually using it and I can't figure out how to change my profile
Picture… Can someone please help me I'm using my iPhone 4S? Please

My volume isn't working on my iphone?

It is an iphone 4s and when i try playing music, it plays the music, but the bar that adjust the volume doesn't show up and the buttons arn't working. There's no sound coming from the speakers but it shows that its playing.

What speakers are the best $200 can buy?

I really want some speakers because my laptop speakers and monitor speakers are junk. I have a $200 dollar budget. The only requirements are an audio in port so I can connect it to my laptop/iphone etc. I love music but I don't understand audiophile lingo at all and don't want to waste my money on a gimmick. I listen to everything besides modern pop. So dubstep, electro swing, weird indie music, classic rock, hippie movement, 80s hits, 90s rock I love it all and want a speaker system that can handle all that. Thanks so much for your time, I promise I'll choose best answer:]

Transferring photos from MacBook Pro to iPhone 4?

I have a bunch of pictures from my camera that i transferred to my macbook pro and put in iphoto. I started a new folder to sync certain photos from my mac to my phone. In the folder there are random pictures from my camera and iphone (that were deleted because of space). When i sync them to my phone it shows the correct number of pictures (508 in my case) but a lot of the pictures have several copies. Some pictures are on my phone 7 times. And then some pictures don't even sync over to my phone.none of my pictures are duplicated in the folder on my computer so i have no idea why it's doing it on my phone. Or why some of them don't even sync to my phone. Any ideas? Also there all out of order.they're organized by date on my computer then when they get to my phone they're all in random order

Added (1). **i made a separate folder on my desktop where i took pictures from iphoto and dragged them to the new folder. So it's not all the pictures on my computer. And when i sync them on itunes i make sure to click on that folder that's on my desktop (like the home screen of my mac.don't know the correct term)

How to go from a normal text message to an iMessage on an iPhone 4s?

I have been using my iPhone 4s to iMessage but for some reason recently its been reverting to normal texting. I ave tried to start a new message all together, but it still goes back to normal messaging. The numbers i'm trying to iMessage are compatible so i know thats not the problem.