Intel Mac :: Does It Come With Adobe Flash Player

I recently had to get a new iPhone because my last one died.  I've purchased all of my music through iTunes and got the majority of the songs back on my phone.  About 50 songs won't transfer back though.  I tried drag and dropping and checking the sync music button and re-syncing my phone and nothing has worked.  All the songs are downloaded and in iTunes, but nothing is working.  Does anyone know why they won't transfer?