I've been using Ccount (http://www.phpjunkyard.com/php-click-counter.php) to see how many people have downloaded some files, but since I changed hosts I get these errors:
Warning: session_start(): open(/tmp/sess_c12e18522115b19c2ba3a575ad476020, O_RDWR) failed: No such file or directory (2) in /ccount/index.php on line 40

Warning: session_start(): Cannot send session cookie - headers already sent by (output started at /ccount/index.php:40) in /ccount/index.php on line 40

Warning: session_start(): Cannot send session cache limiter - headers already sent (output started at /ccount/index.php:40) in /ccount/index.php on line 40

Warning: Unknown(): open(/tmp/sess_c12e18522115b19c2ba3a575ad476020, O_RDWR) failed: No such file or directory (2) in Unknown on line 0

Warning: Unknown(): Failed to write session data (files). Please verify that the current setting of session.save_path is correct (/tmp) in Unknown on line 0

Does anyone know what the problem is? I'm sure I've CHMODed the files the right way.

Ok, apparently the session_start() function isn't near the header() functions, so go into the file, find the header() functions, and move them near the session_start() function... make sense? Just post the source of that file here ;)