Why can't I click and drag music onto my iphone anymore?

I just updated some software, and now my iTunes library is just songs I purchased through iTunes. After adding songs I legally downloaded else where and opened with iTunes, I can no longer just drag and drop the songs onto the "iPhone" tab. Why? Any solutions would be great. Leaving for a 20 hour road trip by myself and can't let iTunes erase my music first…

Who would buy music in itunes? Are you mad? 1$ for every music? I can easily get them free, here is how. Go download idownloader from appstore, then open it, go google famous website to download music etc, there are millions you can find them anywhere, 1$ is too exorbitant for a price.

  • Why won't my iPhone play music as soon as I click it? I click on a song under my music and it won't play until about 30ish seconds after i click it.why? And how do i get it to not do that?
  • Why won't my drag and drop syncing on iPhone 4 work all of a sudden? I have the newest version of iTunes and an iPhone 4, I've always used the drag and drop function to add new music to my phone. All of a sudden it just doesn't work anymore. Somebody please help me, this sucks! Why has this happened?
  • Why won't iTunes let me drag individual songs onto my iPhone? I have the new itunes (11) and it won't let drag individual songs onto my iPhone. I tried looking it up on the internet, and one person said "make sure that your iPhone is setup to sync your songs manually instead of syncing only the checked songs/videos." What does that mean? I don't want all of my library on my iphone… Please Help!
  • Why can't I load pictures onto my iphoto anymore? I have a mac by the way so last week i plugged my friend's iphone to my iphoto to transfer some pictures. I forgot to eject her phone and i just removed the chord from my computer and it says her device was still attached. Now I can't load pictures from my phone to my iphoto. My iphone doesn't show up on the list of devices connected on iphoto. What should I do? What should/can I do to connect my iphone to my iphoto so that I can load my pictures again?