I didn't get the same copy? What do I do?

When I play the game, I get a box before the game starts asking which version of Homeworld I want to play, then all the menu’s are the same, it says “beta” next to the logo on the left and there’s no campaign option, what happened?

Sounds like the launcher. Pick the one you want to play, which should then launch the game and you’ll see what you’re expecting.

I did, however the menu isn’t the same as I’ve seen anywhere. It’s just the plain logo with no campaign option and, it says BETA next to Homeworld. Did I download a earlier version of the game? Do I have to redownload it?

Oh, I have heard people say that you need to download all the “DLC” files to have everything. (Nothing you need to buy, just download.)