That was the obvious thing so I rechecked that several times. My custom name for the directory is "contract"

So I have (under the site root directory):
/modules/contract (which contains the html/modules/wraps from the source .zip)
/xoops_trust_path/modules/wraps (which is the same as the folder from the source .zip)
/xoops_trust_path/wraps/contract (which contains my original html files I would like wrapped)

And I have added the define line in the mainfile.php

Did I get one wrong?