The st_cop_eng_trans_installer.zip file you have requested: Call of Pripyat / Mods / English CoP Translation Installer - 374.78kb is not available. Perhaps try browsing all files for the game S.T.A.L.K.E.R.: Call of Pripyat and upload any files you want to share or are missing. This is the only information we could locate:
This is an English patch for Russian version of S.T.A.L.K.E.R. Call of PripyatIt will only change dialog texts. not the voices. This version comes with an installer.