Hi and Welcome. I'm Joel and I look forward to assisting you today with your question. So the issue here is your pictures and music is not syncing to your iPhone? When you are on your Mac and open iTunes, are you able to play your music successfully? What screen shows you the 2,000 pictures? Is it the usage bar. Are you pictures stored in iPhoto? If you login to iCloud here https://www.icloud.com/#photos, do you see your photos there?