So, I released http://skyrim.nexusmods.com/downloads/file.php?id=9244&tab=3&navtag=/modules/comments/comments_ajax.php?tid=562890|:|fid=9244 and it works absolutely fine for me. For some, however, the scripts that run off the dialogue aren't working. They just go through the dialogue and.. nothing happens.

All scripts involved are:
Game.GetPlayer().RemoveItem(Gold001, 500)
GetOwningQuest().SetStage(10)
Game.ShowRaceMenu()

It works for me, but not for some others. Any idea what could cause that?

I agree - I have a thread relating to this.
The Bard quests are all bugged cause dialogue is done but fancy Bethesda code not executed.
I have an NPC that uses the Follower dialogues.
Use a voice type it dont like and the inventary dont open.
Because I wanted my NPC to use the voice recordings ( and copy a dialoge does not allow this ) I had to short curcuit the Bethesda crap and put in my own simple custom comands, and provide my NPC with oldstyle AI packages - this overlay/alias crap is just CRAP.

The moto - IF IT AINT BROKE DONT CHANGE IT - applies to what Bethesda has done.