PS 1.74 login Page Translation

[szmy]

Hello Everyone

This is my first 1.7 shop ,and i use 1.7.4.2 

I want to translation/change some words in authentication page  like: Social title, First Name, Last Name etc...

As i use Japnese Front office, The default translation of this page is not that proper

And in older version i can find translation on backoffice , in 1.7 translation system i cann't find place to edite this page

I also checked crowdin.com there are no authentication block

Please tell me where i can translation  this page

Thanks