First of all, thank you for this module. I am aware of what a pain it is to be on the admin site of things.
I have installed the module and i18 option.
My site is running on 2 languages which are EN & DE.
The sitemap for the EN-site (default) displays 122 URLS correctly in the format http://wwww.domain.com/en/xx
The sitemap for the DE site displays 24 URLS (some of which have been deleted and will are not being removed at all.
All custom content types and taxonomy vocabularies that have been translated using entity translation are missing from the DE sitemap. (formatted in the same fashion as the EN map http://wwww.domain.com/de/xx)
Updating the cached sitemap, deleting and re-creating the DE one only re-create the issues.
Am I missing something or is this a bug?