Until you do that absolutely NOTHING will work!
You typically set up a Security Group when you create your EC2 account and then forget about them - I know I did...
You can see what ports you have open with this command:
$ ec2-describe-groupAnd you open up Port 443 with this command ('default' is the name of my security group):
$ ec2-authorize -p 443 default
I hope to write more on troubleshooting SSL set ups shortly.