I have and iphone i am new to this phone i am trying to up load image/file to craigslist.com when i go to craigslist web site and go to add a image the button that say choice file is there but it fade out so i can click on it i go to the app store on my phone and find a update for craigslist it say install on it but it fade out too so i can click on it i am useing my iphone on t moble service can come help me with this would be great thanks