VBSEO is not working in my forum,need help

[Seleno]

Hi There
i was reading to make my forum fast,i added the file in the attachment as htaccess file:
vBulletin SEO Forums
to make forum more fast

and now all my forum pages are not opening,its redirecting the pages to my 404 wrong file or page that i add
forum: http://lebnights.net/vb
u can see this: http://www.lebnights.net/vb/t32500.html
going to the black page mean to the 404 wrong page or file

so tell me plz how to turn on VBSEO again in my forum?

[Keith Cohen]

Make sure you uploaded the .htaccess file, and make sure that your server has mod_rewrite enabled.

[Seleno]

thanx Keith Cohen
but how to add another htaccess code in the same htaccess of VBSEO?

[Oleg Ignatiuk]

You can append your rewrite rules to the bottom of vBSEO's .htaccess.