I found a working link to the previous version of Hackman (7.02), which I used for the screenshots above. On this web page, click on the 'hack702.zip' link, then the 'basic ftp' link. The freeware version of the Hackman 8.0 release has a low file size restriction (around 200KB) so can not be used to edit the data.000 file.

direct download (3MB)

The web page and direct link may eventually become invalid, as links to previous versions of software have a tendency to do.