These ebuilds come from http://overlays.gentoo.org.
If you have some problems, go to the official site first.
flex-ant-tasks : The Flex Ant tasks provide a convenient way to build your Flex projects using ant. ( http://labs.adobe.com/wiki/index.php/Flex_Ant_Tasks )
red5 : Open Source Flash Server written in Java ( http://osflash.org/red5 )
Add an ebuild in portage :
The ebuild is now in the portage tree.
You can also use layman : emerge layman then layman -a zugaina
For Paludis use this rsync : rsync://gentoo.zugaina.org/zugaina-portage
If you have a problem : ycarus(-at-)zugaina.org