Flash Uploader Problem for 2.8.4

hey guys,

i’ve searched all over the net & found many solutions for flash uploader prob but none of them worked for me almsot tried all all solution found solution, but no luck so finally i thought to post my prob here

i am using wordpress 2.8.4

my ROOT .htaccess configuration
# BEGIN WordPress
<IfModule mod_rewrite.c>
RewriteEngine On
RewriteBase /
RewriteCond %{REQUEST_FILENAME} !-f
RewriteCond %{REQUEST_FILENAME} !-d
RewriteRule . /index.php [L]
</IfModule>

# END WordPress
RewriteCond %{HTTP_HOST} ^abcd.net$ [OR]
RewriteCond %{HTTP_HOST} ^www.abcd.com$

my WP-ADMIN .htaccess configuration
# BEGIN WordPress
RewriteEngine On
RewriteBase /
RewriteCond %{REQUEST_FILENAME} !-f
RewriteCond %{REQUEST_FILENAME} !-d
RewriteRule . /index.php [L]
# END WordPress

Using following Custom Structure:
[/%year%/%category%/%postname%.htm ]

My Miscellaneous Settings
Store uploads in this folder is: wp-content/uploads
Full URL path to files is: http://abc.com/wp-content/uploads

kindly please help, my site requires a large number of image upload which is a hectic by uploading one by one with normal uploader

any comment/help would be deeply appreciated!