Display image from database and play video in ASP.Net with C#

Question

1. How can i display image in ASP.Net where the image is save as binary inside the database.

2. How can i play a video in ASP.Net? If my video was in swf/flv format and i save the path of video folder into database, what should i do in order to play the video.

3. How do i set user must login with Login Control in VS 2005, in order for user to view specific webpage.