Hi, I was following the steps to upgrade from the registered version 5.x to 6 and when I got to the step of exec the ubb_upgrade.cgi file I get an error from the apache error log:

[Fri Mar 16 13:02:13 2001] [error] (2)No such file or directory: exec of /var/www/cgi-bin/ubb_upgrade.cgi failed
[Fri Mar 16 13:02:13 2001] [error] [client 206.54.5.24] Premature end of script headers: /var/www/cgi-bin/ubb_upgrade.cgi

the perl path is correct, and the attribs are set to 755.