Meu servidor está executando o php 5.3 e minha instalação do wordpress está cuspindo esses erros em mim, causando a interrupção do meu session_start ().

Deprecated: Assigning the return value of new by reference is deprecated in /home//public_html/hub/wp-settings.php on line 647

Deprecated: Assigning the return value of new by reference is deprecated in /home//public_html/hub/wp-settings.php on line 662

Deprecated: Assigning the return value of new by reference is deprecated in /home//public_html/hub/wp-settings.php on line 669

Deprecated: Assigning the return value of new by reference is deprecated in /home//public_html/hub/wp-settings.php on line 676

Deprecated: Assigning the return value of new by reference is deprecated in /home//public_html/hub/wp-settings.php on line 712

Isso é chato, mas não quero desativar o relatório de erros na tela. Como desabilito esses avisos preteridos incômodos?

Estou executando o Wordpress 2.9.2.