i got this when ran the upgrade....whats wrong?

Warning: include([path_to]inc/header.inc.php) [function.include]: failed to open stream: No such file or directory in /home/****/public_html/ray/modules/global/inc/header.inc.php on line 10

Warning: include([path_to]inc/header.inc.php) [function.include]: failed to open stream: No such file or directory in /home/****/public_html/ray/modules/global/inc/header.inc.php on line 10

Warning: include() [function.include]: Failed opening '[path_to]inc/header.inc.php' for inclusion (include_path='.:/usr/lib/php:/usr/local/lib/php') in /home/****/public_html/ray/modules/global/inc/header.inc.php on line 10

-= Dolphin Upgrade Pack =-

Release date: 17.06.08
Source version: 6.0
Destination version: 6.1.2
Installed version: 6.0.0004

Beginning upgrade.

Writing paths to files... OK
Converting database:
Connecting to DB... OK
Applying pre-patches...
prePatch_4.sql...

Warning at line 431: fopen(sql_upg/prePatch_4.sql) [function.fopen]: failed to open stream: No such file or directory
Cannot read file sql_upg/prePatch_4.sql. Cannot continue upgrade.