I'm trying to complete this quest, http://wiki.guildwars.com/wiki/Thackeray%27s_scavenger_hunt but I am struggling. So far I have delivered the candles, the cupcake, and 3 dwarven ales, along with the kabob.
Still the only dialog options I have when I speak to him are 'Backup a second a plan?' and 'I've got a drink here I think you'll really enjoy' to which I have donated 3 dwarven ales I bought on Embark Beach.
What else do I need to do to be able to progress with this quest and finish this segment of the Guild Wars Live content?
I had received some sacks of junk from him which I opened, along with the wrapped present.
Update
As you can see from these images, I do not have any other dialog options than those I included in my question.
I have also got, as you can see from the second picture, 3 rice wines, 2 dwarven ales, and a keg of ale. None of which he will accept. He doesn't even recognise that I have the dwarven ale or rice wine in my inventory.

I have even approached him with all the drinks mentioned on the Wiki, to no avail.
Update 2
Upon further investigation, it looks like all my progress in this quest was lost when they changed it. I've so far handed in, 1 Birthday Cupcake, 1 Drake Kabob, and 3 Dwarven Ales. So I guess I need to go and refarm the Grawl Necklaces! Argh.