ok i try everything that people posted about syncing musinc on iphone4 ,gtkpod ipod manager just dont want to connect whit my phone, banshee just crash in the middle of the syncing and rhythmbox doesn't allow my to sync the music that i want... just the entire library that's to huge for the phone.... and for the finally.... none of them let me delete old song that i want get rid of!!!!!!!

please someone help me