Well i was never able to get items to work but i think i was pretty close before my server crashed reinstalling now.
I wasn't able to get Ascent DB editor to work so here is a different way.
WoW Vendetta - Wage Your War
right under the wowV picture there is crossed swords (weapons) and a shield (armor) click on one of these then make your item. Fill it out then hit submit. After then u will get to a page and it will say all the item names. Goto your database and goto items. Either hit the + or take an old item and under all the names on the internet page there will be a bunch of numbers. Insert these into the item table and save file restart server and should work (hopefully)
as i said i dont know if it works just hope it helps.
Goodluck