I’m a novice as well but can try to help. Its been a while so bear with me if it doesn’t work first time.
I did the same, just dropped and translation related files in the right place.
Then went to system->manage stores
there created a new store view under the existing store - only named it ‘Hebrew’ - and linked it to the Main Store
Once you create the store view go to CMS->Manage Pages
Edit the home page (the one with the status at ‘Enabled’) and add the Hebrew store view the to selections and save.
I believe that should be enough to let the pull down menu include the Hebrew store view.