How to Get iPhone picture as my youtube icon?

I have a youtube account and I really want to change my profile picture to a new picture, but I got a new iphone 4 and now I can't change my icon to one of my pictures. But whenever I try to upload an iphone pic as the profile picture it says there's an error. How can I get an iphone picture as my youtube icon?

Email your picture to a computer with internet access. Then, save the picture by right clicking it and save it under a name you can remember. Then, simply sign into your youtube account and click the icon with your name next to it in the top right corner of the youtube home page. Select settings, and under account information there should be a silhouette if a person with a blue background, and underneath it the text "change". Click this and select your picture where you saved it previously.

If it still doesn't work, try converting the picture to PNG or JPEG using the converter of your choice.

Here's some converters you could use:

PC:
http://download.cnet.com/...ag=mncol;3 (trusted site, trusted software)

Mac: http://download.cnet.com/...ag=mncol;9 (again, very safe)