you tried adding the following to the .htaccess file?

php_value upload_max_filesize 200M
php_value post_max_size 200M
php_value output_buffering on
php_value max_execution_time 2000
php_value max_input_time 2000
php_value session.gc_maxlifetime 24400

RewriteEngine On


# Turn off mod_security filtering.
SecFilterEngine Off

# The below probably isn't needed,
# but better safe than sorry.
SecFilterScanPOST Off