Want to translate menus in 622 to swedish

Hello everyone,

I run a book store in Sweden and we sell quite a lot of ereaders. We've recently started selling the PocketBook Touch 622 and I would very much be able to translate its menus to swedish as en added benefit for my customers.

I tried using a file I found here on the forums, but it's probably not intended for the 622. When I put it in the language folder in the system folder, it actually translates some of the menus to swedish, but not all.

I guess I need a complete list to adress these english menus that are still not translated.
Anyone know how to do this?
Anyone ut there who might be able to help?

Any help would be very much appreciated.

Thanks,
Magnus