[ic] Need help - Translating messages of the shop to portuguese

[Anderson A. eMiranda]

Hi,

I am from Brazil and I am working on translating Interchange to portuguese.
Its almost complete, but some error messages, like

"Username does not exists"
"Password mismatch",

I cannot translate it, even editing
/usr/lib/interchange/my_store/lib/Vend/UserDB.pm (the only file that this
message appears)

What file have this messages? Am I doing something wrong?

If somebody have a portuguese version, pls let me know!

Thanks a lot!

Anderson A. eMiranda