[Checkout 0.1.18/Checkout by Email 0.1.10] localizations woes

I am using the checkout module in connection with checkoutemail, translated it into german and the localization works as planned except the email that is sent still uses english - all the g->text parts in the templates look alright - what am I missing here?

Gallery version: 2.2.3
Module / Theme name & version: Checkout 0.1.18/Checkout by Email 0.1.10
PHP version: 4.3.10-22 (cli)
Webserver: Apache/1.3.33
Database: MySql 4.0.24
Activated toolkits: NetPbm, GD