Did you try using the mods without Magic Launcher? Magic launcher don't install forge correctly,as i know. since if you install it,then it shows you it has one error try force update then put mods by Win-rar ( http://www.rarlab.com ).
OR just use the 1.2.5 Unoffical update (Official update has many bugs,like crashing after accepting quest)TOK is to be installed by mods folder. put the zip from download in the mods folder,and i mean the TOK one