Best answer by Navid
Please note that if you change the URL for your profile, any links and embeds previously posted to third-party sites before August 2010 will be broken. Embeds posted after August 2010 will still play your sounds but, if the listener clicks through to the SoundCloud page, they will be directed to an empty page.
You can read more about how to change your profile image on our help center:
Please be aware that you need to do this from our webpage in order for it to work!
Hope that helps - please let me know if you have any other questions or concerns about this.