How to customize iPhone 4 app icons?

I've tried cocoppa, app icons, and a few others. But what you actually download is just an extra shortcut, not a replacement icon - so you'll end up with two icons on your home screen for the same app, with an annoying blank page open for a few seconds before opening the program. My question, is there an app, or way to replace the original app? Hope my question makes sense, sorry for rambling, and thanks for an answers!

IPhone 3GS only receiving E and not 3G?

I've called my provider (Optus) and I've checked my settings (3G, Celleur data). I've reset my settings but soon as I did it, it went straight back to EDGE. Is it my SIM card? Would replacing it help? Please help.
My mum ha the same plan and is getting perfect 3G

Why does the sound of my iPhone goes off while it's charging

Why does the sound of my iPhone 3GS goes off while it's charging? Yesterday I updated my iOS 4.3.3 to 6.1.3, and today, I plugged it to the charger while music was playing, and the speakers.kinda.turned off. But the "play" emblem was still there. When I unplugged the charger, the music proceeded playing. What's the problem?

Iphone 5 sprint 6.1.4 unlock US?

I purchased an iPhone 5 in January of 2013 off of ebay. It was "factory unlocked" running 6.1.2 and updated to 6.1.3 running flawlessly. Anyway, I was using it on straight talk for the past 6/7 months with 4g working and everything even mms. It was not jailbroken or anything. So Last week I was on itunes and it updated to 6.1.4 and all of a sudden when i go to turn it on it's locked asking for activation. Not only that but it's locked to SPRINT! How is this possible? When it was "factory unlocked" I checked the about me on the iphone and I could have sworn it said att as the carrier. WTF. And now there's no way to unlock my phone. I researched and every where it said its impossible to use att/tmobile/straight talk on the sprint iphone. So how the F* was It unlocked before running 4g on straight talk? I need my phone factory unlocked to work in the us With straight talk again, like before. I'm beginning to think it may have updated with the wrong software or something. Now I'm f**ked. And not only that but the resale price just went down since its now sprint. So how the f is this possible and how do I fix it?

Added (1). I already bought the gpp sim and it doesn't work at all. I'm so confused, I could have sworn it wasn't sprint before.

Added (2). To be more specific I purchased it used in mint condition on January 2, 2013

My twitter won't let me tweet pictures?

I have an iPhone 4S and just yesterday around 7 pm my twitter won't let me tweet pictures, I can tweet words and emojis along with retweeting just not pictures.