Except the English only Pro version is not available. On the download sites I get:
"Not Found
The requested URL /software/MacOSX/10.5/OmniGrafflePro-5.0-English.dmg was not found on this server.
Additionally, a 404 Not Found error was encountered while trying to use an ErrorDocument to handle the request.
Apache Server at omnigroup.purestatic.com Port 80"
and
"Not Found
The requested URL /omnigroup/software/MacOSX/10.5/OmniGrafflePro-5.0-English.dmg was not found on this server.
Apache/2.0.55 (Ubuntu) DAV/2 PHP/5.1.2 mod_ssl/2.0.55 OpenSSL/0.9.8a Server at downloads.extremesims.com Port 80"
Maybe I'm too quick on the draw
"Not Found
The requested URL /software/MacOSX/10.5/OmniGrafflePro-5.0-English.dmg was not found on this server.
Additionally, a 404 Not Found error was encountered while trying to use an ErrorDocument to handle the request.
Apache Server at omnigroup.purestatic.com Port 80"
and
"Not Found
The requested URL /omnigroup/software/MacOSX/10.5/OmniGrafflePro-5.0-English.dmg was not found on this server.
Apache/2.0.55 (Ubuntu) DAV/2 PHP/5.1.2 mod_ssl/2.0.55 OpenSSL/0.9.8a Server at downloads.extremesims.com Port 80"
Maybe I'm too quick on the draw