Hi!
This is very easy guide how to show you to find Display IDs. This is gonna be easy in my opinion.
Ok to start finding Display ID lets go to World of Warcraft :: Allakhazam.com
1.Into the search window which is in the left navigation bar type any item name you wish.Lets take for example
Giantstalker's Breastplate.After you have done a search click the item name.
2.After that you will see a detailed info about item such as Stamina,intellect and etc. Then under the stats there are links which send you to a different file formats:XML,TXT, LITE.You have to click on XML:
Screenshot:
After you will click an XML link then there will appear XML file source .Find the line which has <displayinfo> tag:
Screenshot:
And thats it here is your so needed display ID
#To find Item IDs please go to Wowhead: The one thing on which Ninjas and Pirates agree.
in search type any item you like lets take for an example Ashbringer
Then click the Asringer name and you will have the link like this :Code:http://www.wowhead.com/?item=13262
Red marked number is an ID of the choosen Item!