rockreyad on "How to Show User upload File in A Custom Page"

I need A Help Urgent About Wordpress.
I want to Show User Upload File In A custom Page Without A Plugin and With An upload bar.
Which will assist every image has a shortcode like this ex:[img id=1]. When user paste it in Anywhere, I means when user paste it in a post or a Comment box it will show the image..

An Another is...
A Font-end Notification Page.I means When A User Comment A post it will notify only the Author in a Custom Page and when admin change the User roles it will notify also..that's all..