Binaries (and links) are in ./bin; man pages are in ./man/man1
Install by copying binaries/links onto your path, or by copying htcp and making symbolic links to htcp from htls, htll, htrm and htmkdir.
All the .1 man pages should be copied to a suitable ./man/man1 directory on your man path.
If you just want to install htcp in /usr/local, then unpacking this tgz file in /usr/local should do the trick. (Delete this README when you're finished!)
For more about htcp see http://www.gridsite.org/