You can add Images, Videos and Audio to your profile by navigating to 'My Profiles' via your dashboard and clicking the appropriate link under the profile you wish to add media to.
Images can be uploaded via the image uploader, video files can be uploaded directly to EventMate or linked directly from Youtube or Vimeo. Audio files can be uploaded directly to EventMate or linked from Soundcloud.
On your profile, images, video and audio will appear under the 'Media' tab.