Creating An Amazon EC2 From A Running Instance

Follow below given link, its very good article:

http://webkist.wordpress.com/2010/03/16/creating-an-amazon-ec2-ebs-ami-from-a-running-instance/ 

Otherwise after completion of Step 2 in above link follow below steps:

1) Go to Amazon Management Console

2) Go to EC2 Dashboard

3) Go to Volumes Panel (which is in left side)

4) Right Click on the Volume where image has been copied

5) Click on "Create Snapshot"

6) Click on Snapshot Panel ( which is in left side and after Volume Panel)

7) Select Snapshot which is just created and then Click on the "Create Image" button just above the list ofSnapshots

8) This will ask for RAM Disk and Kernel ID (copy from the Actual image description)

9) Click on "Create Image"

Thats it!!!