Board3

Your Portal Version: 1.0.0RC3
Your phpBB Type: Standard phpBB3
MODs installed: Yes
Your knowledge: Basic Knowledge
Boardlink: http://parksteels.co.uk/forum

PHP Version: php3.0.4

What have you done before the problem was there?
Nothing

What have you already tryed to solve the problem?
Looked in all folders for the file

Description and Message
installed and got this error
[phpBB Debug] PHP Notice: in file /portal/block/mini_cal.php on line 26: include_once(.//portal/includes/mini_cal/mini_cal_config.php) [function.include-once]: failed to open stream: No such file or directory
[phpBB Debug] PHP Notice: in file /portal/block/mini_cal.php on line 26: include_once() [function.include]: Failed opening './/portal/includes/mini_cal/mini_cal_config.php' for inclusion (include_path='.:/usr/local/php52/pear')
[phpBB Debug] PHP Notice: in file /portal/block/mini_cal.php on line 27: include_once(.//portal/includes/mini_cal/mini_cal_common.php) [function.include-once]: failed to open stream: No such file or directory
[phpBB Debug] PHP Notice: in file /portal/block/mini_cal.php on line 27: include_once() [function.include]: Failed opening './/portal/includes/mini_cal/mini_cal_common.php' for inclusion (include_path='.:/usr/local/php52/pear')
[phpBB Debug] PHP Notice: in file /portal/block/mini_cal.php on line 28: include_once(.//portal/includes/mini_cal/calendarSuite.php) [function.include-once]: failed to open stream: No such file or directory
[phpBB Debug] PHP Notice: in file /portal/block/mini_cal.php on line 28: include_once() [function.include]: Failed opening './/portal/includes/mini_cal/calendarSuite.php' for inclusion (include_path='.:/usr/local/php52/pear')

Fatal error: Class 'calendarSuite' not found in /home/parkstee/public_html/forum/portal/block/mini_cal.php on line 51

Check if you have uploaded all portal files to the correct place (keep the directory structure of the directory "root" of the package).
The error message is clear: the file is missing on your webserver.