Yup, that did it! It works now
I am just going to clean it up a bit and get it on the SVN. If there are issues found with it at some point, they can be fixed at any time I am sure, but it seems pretty rock solid from my testing so far.
One thing I am still debating is if I should have it say the "You say" messages as if you had actually said it. Right now, I just have it set to send that message to the player that actually clicks the link, so it still seems similar to normal EQ, but that can be removed. The only concern I have with it not showing who is clicking the link is if people start spamming with it and no one can tell for sure who is doing it. If this gets to be popular, I guess we could always add a rule so admins could decide if they want the "You say" messages or whatever.
With this and $client->message, you could actually have a complete conversation with an NPC without anyone else even seeing the conversation at all. I think that has positive and negative benefits, but is definitely something interesting.