I also ran a debug and found these errors. Unfortunately it appears to hang after the following error listed below:
Warning: include([host]/wp-content/advanced-cache.php) [function.include]: failed to open stream: No such file or directory in [host]/wp-settings.php on line 60
Warning: include() [function.include]: Failed opening '[host]/wp-content/advanced-cache.php' for inclusion (include_path='.:/usr/local/php5/lib/php') in [host]/wp-settings.php on line 60
Notice: add_option was called with an argument that is deprecated since version 2.3 with no alternative available. in [host]/wp-includes/functions.php on line 3323
Notice: Undefined index: aioseop_migrate in [host]/wp-content/plugins/all-in-one-seo-pack/all_in_one_seo_pack.php on line 537
Notice: Undefined index: aioseop_migrate_options in [host]/wp-content/plugins/all-in-one-seo-pack/all_in_one_seo_pack.php on line 538
Notice: Undefined index: aiosp_enabled in [host]/wp-content/plugins/all-in-one-seo-pack/all_in_one_seo_pack.php on line 688
Notice: Undefined index: aiosp_enabled in [host]/wp-content/plugins/all-in-one-seo-pack/all_in_one_seo_pack.php on line 688
Notice: Undefined index: trackregistration in [host]/wp-content/plugins/google-analytics-for-wordpress/googleanalytics.php on line 617
Warning: session_start() [function.session-start]: Cannot send session cache limiter - headers already sent (output started at [host]/wp-settings.php:60) in [host]/wp-content/plugins/si-contact-form/si-contact-form.php on line 940
Notice: define() was called with an argument that is deprecated since version 3.0! The constant VHOST is deprecated. Use the boolean constant SUBDOMAIN_INSTALL in wp-config.php to enable a subdomain configuration. Use is_subdomain_install() to check whether a subdomain configuration is enabled. in [host]/wp-includes/functions.php on line 3321
Notice: register_sidebar_widget is deprecated since version 2.8! Use wp_register_sidebar_widget() instead. in [host]/wp-includes/functions.php on line 3237
Notice: register_widget_control is deprecated since version 2.8! Use wp_register_widget_control() instead. in [host]/wp-includes/functions.php on line 3237