Please, check up working capacity of module PDO_SQLITE, as after updating PHP, site any more does not work. Tested on other hosting (stonerocket.net) - all OK.
Maybe it's definitely installed, but it's does not work, and information phpinfo () is shown not correctly, url: http://cadrobot.heliohost.org/pinfo.php - look a list bottom.
My site cadrobot.heliohost.org uses PDO_SQLITE driver, and since you upgraded the server to PHP 5.3.2 site not working
[22-Mar-2010 11:44:17] PHP Warning: PHP Startup: Unable to load dynamic library '/usr/local/lib/php/extensions/no-debug-non-zts-20090626/pdo_pgsql.so' - /usr/local/lib/php/extensions/no-debug-non-zts-20090626/pdo_pgsql.so: cannot open shared object file: No such file or directory in Unknown on line 0