Most of the "missing" monsters from 2e and earlier were converted to 3e in Necromancer Games Tome of Horrors. Since the entire book is OGL, there wasn't any point to WotC making their own version, although they occassionally did. The quickling stats are here too. Also, the book was revised for 3.5 but only came out as a pdf. It's one of my favorite monster books and it even has the template for Dire creatures.
How hung up are you on the "official" version of monsters? I know Pathfinder has been relying heavily on the Tome of Horror monsters.
Debby