Hi, i done exactly what says in Mods for downloading , but ingame Steam/ Data they dont show up,someone have an ide?

When you say they dont show up...you mean the .esp files of the various mods are not there? Try opening a basic mod that is just a single .esp file, and placing it in your data folder manually (drag n drop). It sounds like you have extracted to the wrong place, as opposed to steam being at fault in some way.

Also remember to activate it in the Launcher. Make sure it is checked in the Data Files before playing the game.

i Have it on C/Programs/steam/steamops/common/fallout newvegas as a ESP file like the mods says, but when i go to open thn game and use DATA ,no ESP is in data.

to activate it in the Launcher,

How?

Try opening a basic mod that is just a single .esp file, and placing it in your data folder

How do i do that?

Make sure the .esp file is in /steam/steamapps/common/fallout newvegas/data/

Then start the launcher and click on data files. In the window that now opens up you will see your mod, given you installed it in the right folder. Select the checkbox, hit OK so the window close, and then launch the game with the play button.

OK, its not in Data ,only in Commen, i traid,thanks for help.