How to activate my replacement iPhone?

I had the iPhone 5 until the lock button stopped working, so I went to Best Buy and they gave me a replacement iPhone 5. I backed up the info from my first phone on iCloud, but it wasn't updated enough for my new phone, so I can't set my new phone up with the iCloud. Since I put the SIM card from my old phone in my new phone, will it work if I just set my new phone up as a "new iPhone" instead of setting it up with iCloud?

Can you delete pictures on instagram on the laptop/computer?

Sometimes I can't go on instagram on an android or apple tech (iphone, ipad, ipod) so I use webstagram (computer version of instagram). I want to delete some pictures, but not sure if you can or how on it. So I was wondering if anyone knows? I have a feeling you can't… Help?

How to go about getting media on my new iPhone?

Here's the thing.

My iPod has 160GB and my iPhone only 16GB. All of my music and videos are more than 16GB so I want to put the more important stuff on there. I just don't know how to do this since my iPod is associated with my iTunes and synced up with it.

Any help would be appreciated

Added (1). Edit: I now realize that I might need to make a playlist to do this.

I don't know how to do that and sync only my iPhone to it.

My iPhone 4S won't let me update my app?

On my iPhone 4S I tried to update one of my apps. It said that I didn't have enough storage so I deleted some stuff & it said "waiting" I tapped on it & it wouldn't load so I tried to delete it & the x won't pop up. It lets me download other apps but it won't work

Apple Earpods vs Sennheiser mm 30i?

I would like to know technically which pair of headphones provides a better sound quality? I have an iphone 4s and i'm planing to buy a new headphones, i found the Apple Earpods for a price of 20 euros and Sennheiser mm 30i for 30, what would be a better choice regarding at fist place the sound quality?

Why is my iPhone calling random people?

I know a lot of people have asked about this already, but my iPhone 4 keeps calling random people. I'm always getting phone calls back from complaining recipients of my supposed calls, and I'm getting tired or having to repeatedly apologize to people I don't even know. Until now, I've had my iPhone for almost two years, and i never had a problem with it. Then a few months ago, all of this just started and i don't know why. I've looked all over the Internet, but i still can't find a straight answer. The closest to a solution I found was either resetting my iPhone 4, getting a new SIM card, or call Apple (which I of doubt will help solve the problem).Is there a better solution out there that has maybe worked for you personally, or am i better off to just press reset?