Problem with stuffit-password-remover.sit

I got this password remover from the anticode site, http://anticode.com/macintosh/stuffi...rd-remover.sit

When I run the app (it's a pre-OSX app), it prompts for a button selection: Copy, Quit, or Patch. Copy appears to do nothing. Patch opens a file locator dialog with prompt "Where is StuffIt Archive?" When I browse to folders that contain .sit files, they aren't shown in the file listing. And in case it's asking for an app named "StuffIt Archive", I can't locate any by that name in my 10.3 or Classic Applications folders.

Does anyone have experience with this tool?

-dp-

you will need stuffit expander installed to uncompress the archive after the password is stripped from it... Im pretty sure you can get a copy at www.download.com. do a search for "stuffit" in the mac freeware section

That doesn't really address the problem. When I use the password remover, my .SIT file isn't shown in the file selector dialog.

I already have Expander. But there is no stripped-archive to apply it to.

-dp-