Finally Accounter is ready for handling many other languages with its built in Translation tool. You can use it by going to Settings->Translation and select the language you want to help translate to.
Each message in Accounter will be displayed in that view, and you can translate them into your own language.
What it takes to see your own contributions? Just refresh/relogin and you will see all your contributions already applied.
Messages will be approved based on votes by other people. Once approved every one using that language will get them. But you can continue to use your contributions even if they are not approved.