When sending emails from draft why does it not register on emails sent ?

Assuming you have it set to save sent mail, it should. If you have to check a box to tell it every time to save the sent mail, are you forgetting to re-check it when you send from a draft? Because otherwise I don't see where it should make a difference if you had it in your draft folder.

What email are you using, and are you using webmail or an email program?