Problems with Addons

Hello, I'm trying add the addon WeakAuras2, going to curse.com , download the version 5.4.2 , 5.4.0 ,
nothing happends in the game, with /wa or /weakauras
in the Char select in the Addons, I got out of dated Checked, duuno what happends
some one wit hthe same problem ?
Thanks guys

mhh, i have problems with recount. in full party it shows only my no dmg :D (low dmg) and tanks dmg.