Dear Jon,

> archive.org has all three volumes of Burlingame's translation of the
> Dhammapada commentary into English (not obvious title "Buddhist
> Legends):
>
> http://www.archive.org/search.php?query=buddhist%20legends

Thank you!

> Does anyone know if the Pali of this work is online?

At:
http://www.tipitaka.org/romn/cscd/s0502a.att1.xml

Sincerely,
Dmytro