Sitemap created, but error 404

Hello folks, you know how i love your works..but i have a problem with Big/Yahoo

I installed sitemap, i run sitemap generator, i try to sumbmit mannually to google or yahoo, and always they return:

Error 404

the url i submit is http://www.unimagazine.it/forums/sitemap_index.xml.gz

Can sameone help me?

Do you receive any errors when you run the sitemap generator from the vBSEO Sitemap Menu?

no errors...of any kind...

Did i need to control some particular web page??

What is the content of the .htaccess file that is located in your forums directory?

Also, you should upgrade to vBSEO 3.0.0 Gold as soon as possible. RC4 is quite outdated.

Hi Keith..now everything works...i don't know why...i didnt touch anything..

Ok, i should upgrade...i wanna try by myself, because the previously installer ask me a lot of money to upgrade...

here we are...again. I submit the url manually to google webmaster tools .first google say: Hey we got your sitemap now we see it! And now "houston we got a problem...error 404"!!

any suggestion?

Upgraded to vbseo 3.0 gold!