SENDING MESSAGES- once you have logged in you may click on Search from within your page. If you find someone interesting and wish to contact them you can do so in one of two ways. Either click on 'Send this member an email' at the bottom of their profile (this will not store in your 'sent messages') and use whichever email address you would like to use or you can go into your Inbox and send a message as long as you know the username (a copy will then save in your sent box).
They will get this message internally- ie in their FSD inbox. Emails are not shared unless you choose to do so! We suggest you set up a hotmail address for this purpose however.