[ec2-beta] Private vs. Public Instances

[Micah Walter]

HI Everyone,
I have noticed that on the AWS Console, if I filter my AMI's to  
private, I see the two Canonical instances from Dec 15, 2008  
available. If I however simply search for all Canonical AMIs I see  
these same two and two other public AMIs from 2/26/2009. I was  
assuming that the two new ones are the Beta2 that was just released  
and the two old ones are from when I originally signed up, but was  
curious why these new ones weren't listed as Private.

Also, is there a Wiki or something somewhere that lists the  
configurations for each of these AMIs? Should there be?

Kind Regards,
Micah Walter