So my 06 hhr trys to start when I hook up battery, what do I need to do?

 

Inspect your ignition switch, the battery wire to the fuse box then the one to the starter.

 

There must be more to this story. Like, why is the battery “unhooked” to begin with ?

 

Hit it with a stick until it learns how to finish.

Could you use a few more words to describe the problem?

 

Ok I checked battery cables the starter was loose and a post busted off so a different starter is in next is the switch

 

The battery was/is unhooked because I was working on the transmission (it's a long story)

 

Well no not really... Can I post a video on here?

 

So you need a new starter and that's all?

 

No, she said that she already put in a starter.

 

Something broke then words stopped working.

That is what I understand.

Was the fuse box in any way involved in this secret work on the transmission?
You can make a youtube and post the link, if you think it would help more than just typing words with a description of what happened and the resulting problem.