Does anyone know of a script/program that will generate some sort of
report (basically just run last on every user in passwd) from the wtmp
log?

Seems like it would be something someone has done before. :)

Andrew S. Zbikowski | http://www.ringworld.org
"The irony is that Bill Gates claims to be making
a stable operating system and Linus Torvalds claims
to be trying to take over the world."