These ebuilds come from http://git.overlays.gentoo.org/gitweb/?p=dev/liquidx.git;a=summary.
If you have some problems, go to the official site first.
ec2-ami-tools : Amazon EC2 AMI Tools ( http://developer.amazonwebservices.com/connect/entry.jspa?entryID=368%26ref=featured )
ec2-api-tools : Amazon EC2 Command Line Tools ( http://developer.amazonwebservices.com/connect/entry.jspa?externalID=351%26categoryID=88 )
Add an ebuild in portage :
The ebuild is now in the portage tree.
You can also use layman : emerge layman then layman -a liquidx
For Paludis use this rsync : rsync://gentoo.zugaina.org/liquidx-portage
If you have a problem : ycarus(-at-)zugaina.org