Redownloading bonus items on a formated xbox

Hi Im pretty new to xbox. I brought the legendary edition reech(with the helicopter for the avatar) and flaming skull.

I downloaded these fine to my xbox but now I have a problem. My Son somehow managed to wipe my h/d ( i think he ment to remove a game from the HD but ended up formating the whole thing). After recovering my profile and way point on the xbox Ive found I no longer have the bonus items from Reach.

Is there a way to re download these, bearing in mind that th HD doesnt have it on memory?

Sorry for the rather noob question, Ive not encounted this kind of issue before

Kind Regards

I counter your noob question with one of my own! So, am I understanding correctly that your download history on your console is no longer intact? Have you checked it and confirmed that?