Version 5.0.51 of the plugin is available
A simple copy of the ebuild will do
added to cvs root@vapier root # emerge -s netscape-flash Searching... [ Results for search key : netscape-flash ] [ Applications found : 1 ] * net-www/netscape-flash Latest version available: 5.0.51 Latest version installed: [ Not Installed ] Homepage: http://www.macromedia.com/ Description: Macromedia Shockwave Flash Player