Well If you hit reply thats in the top of the message you want to quote. It gives you the quote option :)
Quick reply brings up a much smaller box in which you reply, I think it still allows smileys though ?? Im sure I've used them, And i dont actually think its any quicker haha, It just doesnt bring the previous message above the box your replying in :) So your unable to quote in it
If you click on 'in reply to' It will take to the message above that,Which is the one the message has been replied to 
So for arguments sake, If you click on 'reply to' in this message. It will take yopu to your original message
And yes there is no doubt numerous easier ways to expalin what i just have, I just dont know em LOL