How to make a song my ring tone on my iPhone 4?

I've just gotten an iPhone 4 and I want to make a song my ring tone. I know there are apps you can buy but I don't want to waste my money because my sister says there's a way to do it through itunes but apparently it's complicated. I'm not very good with computers and stuff so could someone give me a simple and detailed explanation of how to do this?

Was the account deactivated or was I blocked?

I was fb friends with a woman who I chat with once in awhile. Recently I noticed that I can't find her profile anymore (I only view fb through the iPhone app, if that makes a difference. All messages are gone, as well as any comments on my pictures. As though she never existed. I logged into an old account and searched for a person I know she is friends with (but who my old account is not friends with). I looked through the friends of the profile I know she is friends with (it is her son's) but her name was not there… Making me think it was deactivated.

I'm just very confused, she took me out to dinner a few weeks ago because her son was a basic and her son and I were really close. We haven't had a falling out that I'm aware of, she hast responded to any messages of mine since she returned from her sons graduation (but she's not a reliable responder anyways).

I was looking her up because I wanted to send her a bday card, but of she blocked me she probably wouldn't appreciate me sending her one, hence my question.

Thanks for your help

Added (1). That is why I'm so confused… Everything I read explaining the difference between the two says I should still be able to read past comments and messages. Everything is gone, and I don't think she would go through the trouble of deleting every comment in the last year. I'm starting to think she deactivated the account… If I can't find her on my other account either

How to delete YouTube videos from iPhone? - 1

My friend posted sill videos on MY account on YouTube. Although I have forgotten the password to my account, so I can't delete them from computer and I have to use my
iPhone 4g. Please help! By the way it's the app that comes with the phone

Rear USB connection for Head unit?

Jvc kw-r400 is the head unit.

I really like this head unit, but I don't know if it has a rear USB. Basically, I want to run a usb cable for iPhone to the rear of a head unit through my dashboard. I have it all worked out, but I need to know of this particular model has a rear USB connection and I can't find any customer reviews anywhere about it.

Also, if this doesn't have a rear USB, can anyone point me in the direction of a Double DIN head unit that DOES have one.

How to get the Wi-Fi on my iphone 3 to work?

I just bought a sim card from straight talk. It should work with my iphone 3g. To change the apn, I'm supposed to access a website using the Wi-Fi on my phone. The Wi-Fi does work, sort of. I have sucessfully connected to my own home Wi-Fi network but the phone will only go to google. It will go to google and successfully search for whatever I type in, but it will not leave google and go to a different website or even load any websites i search for on google. It is like it wants to but it is incredibly slow and it just won't load. How can I fix this problem so that I can get my phone to work? I need Wi-Fi to work so I can change the apn. Is there another way to do this?