Quote: "Please help me ASAP"

Since you are new, you will need to follow the rules of the forums, which are located here:
http://forum.thegamecreators.com/?m=forum_view&t=171006&b=25
I don't want to come of rude, but posts need to have a title that another new person can search for in the future, if they are having the same problem or similar.
Now to help with your problem. To add a hud is simple, but you will need to either add it in the setup.fpi or use a script to do so. By the sound of your post title you just want a quick fix, so here is a post just for what you want a bioshock hud and scripts.
http://forum.thegamecreators.com/?m=forum_view&t=170679&b=24
If you are not looking for a quick fix, I would try the search box at the bottom of this page and type in " huds " . You might be surprised at what might pop up.
Since I only use x9, you need to experiment with the setup.fpi, by say changing the lives hud to your selected hud.
I hope this helps and doesn't discourage you to keep learning. Good luck!