Can someone please help me with re-downloading Fallout through steam? I want to re-downloading it because the new update made all the mods I had out of date and I messed up when I was un-installing them. So I deleted the whole Fallout New Vegas folder and I can't seem to figure out how to re-download. Any Help would be much appreciated.

just double click on Fallout: New Vegas in your steam library and it should start downloading the game for you,

It should still be on your Steam Games list but darkened out like any other game that isn't installed. So just click on it then click "Install" where the play button usually is.

If you have to... You can right-click on the game name in the library and choose 'delete local content' ~This will require you to re-download the entire game; but do you really need to?

Maybe try verifying the game files first. (Right-click the name >> click Properties, click the Local Files Tab, click Verify integrity of game cache). This will check everything, and re-download anything that is missing or corrupt.