NEW CHANGES as of 20/02/2012:
-Red Helmet now has white cross rather than black
-Green helmet is darker
-specularity changed on various helms
-Painted Helmets have reduced abundance (should be rarer to find now)
-Painted Great Helms are now actually called "Painted Great Helm"

ORIGINAL FEATURES:
-Adds 11 new great helm textures in various colours, that can be purchased at armour merchants in Central/Western Europe (white & red, and white & black helms in the Crusader States or Teutonic Order)
-European Senior knights will occasionally wear any of the red, blue, yellow, green and black helms (had to remove some of the norman and pepperpot helms form their list to do this unfortunatly, but now Lesser knights wear those)
- Knights Templar, Knights of Saint Lazerus and Knights of Saint Thomas occasionally wear the white & red helm
-Teutonic Brother Knights occasionally wear the white & black helm
-Stats are the same as the other great helms

Installation
1. Make Back-up copies of the following files from your dev1257 module folder (just incase):
- item_kinds1.txt
- module.ini
- troops.txt
and any savegames you may want to revert back to if you decide otherwise.
2. drag the contents of the zip file into the dev1257 folder, and choose to replace all files when asked

then it should work fine, it takes a while for the helms to appear in the markets so be patient.. have fun!