download to ipod

Your question is not very clear;

1. are you trying to import songs, in MP3 format, onto your iPod?
2. are you trying to import your iTunes Library onto a different make of MP3 player, using iTunes? (You cannot, or at least, iTunes is not designed to do that.)

no. 2

not an ipod

iTunes cannot help you importing to another brand of mp3 player because it has not been designed to do that. Have you consulted the documentation for the Philips Songbird?