Have you thought of getting an iPhone Rosiew :)
Next phase we need to convert the song from mp3 to .wav so your Nokia can play it. These needs a bit of software to do it but it's free. Go here
http://www.nch.com.au...qKpnKcCFQUTfAod6DTqcA
About 8 lines down there is a link for the free version. Click to download. It will download a.zip file to your downloads folder. Double click the .zip file and it will unpack to a .dmg install file. Double click this and it will create the installable programme. Drag this from the to your Applications folder. Trash the .zip and .dmg file. Open the application (called Switch). Drag your music file to the main Switch window and drop.
At the bottom left there is a drop down menu Output format. Set this to .wav. Click the Convert icon. You now have a ringtone file we can put on the Nokia with a bit of luck. I'll post this next