HI

i learnt that microsoft just recently began blocking mp3's through messenger as they think it is a potentially unsafe file type. It is possible they think it is a serious thgreat and have decided to block it in internet explorer. one test is to get firefox
www.mozilla.org

see if your page works there.

you should try a test by lowering your security settings in the tools/internet options

to see if you can get it to work.

very strange

someone here will be able to help you more