@selx My sincere apologies for the delayed response. I was in the process of merging development of this plugin into another plugin, Subscribe to Comments Reloaded.
All features and bug fixes from WP Comment Subscriptions have been rolled into the latest version of Subscribe to Comments Reloaded, along with a new import routine that will automatically import all of your WP Comment Subscriptions data and options. I’ve halted development of WP Comment Subscriptions and I’m now focusing on improving the Subscribe to Comments Reloaded plugin. Please see further information here: http://wordpress.org/plugins/wp-comment-subscriptions/changelog/
The migration should be seamless, but if you have any questions about migrating from WP Comment Subscriptions to Subscribe to Comments Reloaded please let me know.
Regarding the question you mentioned above: Could you please post that on the Subscribe to Comments Reloaded support forum? If you can post the the language files on the new Subscribe to Comments Reloaded GitHub development page, that would be even better.
