It's probably easier to download via PC from a site like
http://www.25freemp3.com and then transfer the MP3 -format songs to your Vodafone.Thru 25freemp3.com you can sign up for a no-risk free trial offer enabling you to choose 25 songs and one audio book over a 2-week period. If you cancel within 2 weeks and don't go beyond the 25 downloads, you can keep your selections entirely free and won't get charged anything (although their subscription service is indeed great value if you choose to stay on...). The songs have no DRM so you are allowed to make copies for yourself, and are compatible with any mp3 player or iPOD.