mod rewrite with htaccess

I am trying to write a htaccess file with mod rewrite but no luck.

The original url is

http://www.bpages.com/beta/index.php?option=com_sobi2&sobi2Task=sobi2Details&catid=1770&sobi2Id=94872&Itemid=

I want the new url s开发者_开发百科hould be

http://www.bpages.com/beta/abc/xyz

catid=1770 refers to abc, sobi2Id=94872 refers to xyz, beta is a sub directory

Is it possible.Please suggest the best possible way.

Thanks in advance,

Prithvi

The following should do what you want, though I haven't tested it. Also... the Itemid part is empty. Was that just a mistake, or is it supposed to be empty?

<IfModule mod_rewrite.c>
Options +FollowSymlinks
RewriteEngine On

RewriteRule ^beta/([^/]+)/(.+)$ beta/index.php?option=com_sobi2&sobi2Task=sobi2Details&catid=$1&sobi2Id=$2&Itemid= [NC]
</IfModule>

If I understood your question correctly then these rules should work:

Options +FollowSymlinks -MultiViews
RewriteEngine on

RewriteCond %{QUERY_STRING} catid=([^&]+)&sobi2Id=([^&]+)& [NC] 
RewriteRule ^(beta/.*)$ /$1/%1/%2? [L,R,NC]