[TYPO3-shop] missing entries in locallang_db.xml ? and what is orig_hash?

[Andrew Davis]

Hi,

I am editing locallang_db.xml to change the labels for tt_products 
fields in backend.

I dont see any labels for fields:
title
note
note2

Can I just add those?

I tried adding entries in the 3 main sections of that xml
data
orig_hash
orig_text

but it does not seem to have worked.
also, im not even sure what the different sections are for, especially 
the hash one.

any help would be much appreciated (as usual)
Thanks!
Andrew Davis