[plt-scheme] anybody seen scheme-check lately?

    I'm doing some coding where I want lots of testing to assist me in
avoiding my own falacies.  I'm familiar with schemeunit and already
using it in my code;  I was wondering if anybody had implemented
something like haskell's quickcheck for mzscheme.  A bit of google
turned up:

http://list.cs.brown.edu/pipermail/plt-scheme/2003-August/003349.html

but the links appear dead, and I haven't had any luck tracking it
down.

Anybody know of a good copy?  I'd rather not reimplement this if I
could possibly help it.