Just came back to the minecraft scene and so I deiced to update everything. Manually. For both server and client.
Launcher is AT Launcer
The error is java.lang.NoClassDefFoundError: net/minecraftforge/fml/relauncher/IFMLLoadingPlugin
the full log file for server: http://pastebin.com/ETML06Zw
Full log for the client: http://pastebin.com/uu3n80Ua
BOTH client and server are reporting this error. I individually updated each to ensure I was not putting any client mods in the server and no server mods in the client.
What occurs on screen is for the client: Launcher box flashes and returns to menu; the server: cmd line starts up get to halfway through the mods and fatally crashes.