Several folks are reporting that bonus Tradeskill XP is not working in certain guild halls or instances but only on outdoor crafting tables. Check your Tradeskill XP bar carefully to see if you are getting the bonus.
Note that the e-mail notifications that went about were vague and suggested that July 4th weekend was offering bonus XP for adventure and tradeskilling. In fact this is the first AA bonus XP weekend ever offered for EQ2, along with Tradeskill. Combat XP is not currently getting a bonus this weekend.