texture/dds converter

[Rhyfelwyr]

How would I add a banner to the Normans, rather than editing the one they already use, as that would mean changing the English banner ingame as well?

EDIT: I've made a new banner for the normans, converted it to texture file, put it in the right folder. But how do I set the normans to use this rather than the English banners?

EDIT: Never mind got that working. Now I need to sort out how to edit the faction icon that appears when selecting a faction for campaign/custom battles...