I've put an album into iTunes but it won't sync onto my iPhone?

So I have an iPhone 4S which is pretty new, I brought it around January/February time I think but it was definitely this year. I've been having problems with this for a while now that everytime I try to insert an album which I've brought a physical copy of onto my iTunes libray it goes on and works fine on my laptop but when I put the sync cable in the phone won't pick it up even when I click sync. And that's another thing, even though the 'sync' tickbox is ticked it still doesn't sync straight after I've insert my phone cable into a USB slot, why's that? Stupid Apple! Anyways if anyone could give me the answer to these two things I would really appreciate it.

Buy an android phone

  • Why won't my album sync to my iPhone on iTunes? So I downloaded an album on to iTunes and when I try to add the album songs on to my iPhone it doesn't do anything. It's driving me crazy, please help!
  • Why won't itunes sync my CD onto my iphone? I brought two albums and put them on my itunes but when I plug my iphone into my laptop the two albums won't go on to my phone? Why is it doing this and how can I make it work? Its been frustrating me for months! Also before when I had a blackberry ages ago I put videos up from when I went to see lady gaga on my laptop, can I put those videos onto my iphone to?
  • Why won't my iTunes sync my music onto my iPhone? When I plug my iPhone into my laptop and open iTunes to sync my music, it starts to back up all my things onto my computer but it never actually goes passed the backing up, it just stays on that. I've left my phone being plugged into the laptop for over 2 hours and when I returned it said it was still backing up. I want my music on my phone but I don't know why it won't work, help?
  • Why does itunes keep trying to replace the album artwork I used that is the right album artwork? Itunes keeps replacing the right artwork with the wrong artwork on some albums I have on it. It's so annoying.