Hi,
The attached files give England Pikemen and Musketeers.
Please unzip into your main DLV directory (eg. C:\Program Files\SEGA\Medieval II Total War). Click yes when prompted to overwrite and hey, presto - your English army will now feature pikemen and musketeers.
Please mind that installation is to be performed at your own risk, best if you back up the following files/folders:
[your main M2TW directory]\DLV_ext\data\export_descr_buildings.txt
[your main M2TW directory]\DLV_ext\data\export_descr_units.txt
[your main M2TW directory]\DLV_ext\data\UI
[your main M2TW directory]\DLV_ext\data\unit_models\battle_models.modeldb
EDIT: the unit description .tga's are still WIP, pikemen are still shown in French uniforms and musketeers in Milanese garments. As soon as I lay my hands on some tga processing software I will create proper images for unit description.
Credit to Taiji who gave me some sound guidance on this, thanks mate