This is a really easy way to get weapon and armor ID's, well two ways that are both easy and work
So the first way to find ID's is to go to WoW Vendetta - Wage Your War
From there go to tools, display ID's and download that, its a list of (i think) every item in game
http://i96.photobucket.com/albums/l1...Knight_X/q.jpg
If you dont want to download that you can go to Allakhazam.com: World of Warcraft
search any item, say Twinblade of the Phoenix, once one the item page look for a link underneath the stats of the weapon that says XML
http://i96.photobucket.com/albums/l1...night_X/q2.jpg
then on that page do apple/control-f and search display until you find this:
http://i96.photobucket.com/albums/l1...night_X/q3.jpg
that number is your display id
have fun making items everyone!
(oh and if this has been posted before i apologize >_<)