Changing the order of the fields on the signup form

A.
As we intend to build a Japanese website using EasySocial, is there a way to change the order of the signup form.
For example in Japan(ese), one does not have a middle name, and the last name field is always shown before the first name field.

B.
Also the way one writes the address in Japan is in the opposite order from in the US.

This would be the order in Japan:
1. Country
2. Zip Code (Postal Code in Japan)
3. State (Prefecture in Japan)
4. City
5. Address Line 1
6. Address Line 2

How can I accomplish the above?

C.
1. Also, should I first download the incomplete Japanese translation from Transifex and then make adjustments?
https://www.transifex.com/projects/p/easysocial/language/ja_JP/
2. How do I download it and install it?
3. At last, once installed, how can we update the translation, when changes are made to Transifex? Can it be updated in Joomla-backend?

Thanks,

Kaz