[SOLVED]Change one specifik URL using Friendly URL

[AndersIvar]

My problem(?) is that one product has being placed in top of the searchresults for one word that is very important to me. I am using friendly URL and I want to change the topplaced URL to go the category instead of the product. When I try the simple way and just change it in the BO, giving the category the topplaced URL and the product a new one for the product it doesnt work. Probably because I am stupid and the system is smart.

How could I resolve this problem?

[AndersIvar]

I have googled 301 redirects and tried 10 diffrent rules but I cant get it right.
The thing i want to get is a working code to put in my .htaccess that does following:

"domain.se/oljerockar/2-drover-oljerock.html" redirected to "domain.se/2-oljerockar"

I am in big need of this, anyone that can help?

[inveostore.com]

RewriteEngine On
RewriteBase /

RewriteRule ^oljerockar/2-drover-oljerock\.html$ http://www.domain.se/2-oljerockar? [R=301,L]

P.S. Please bear in mind that 1) doing such redirect does not guarantee your SERP position remain unchanged 2) this code redirect both visitors and crawlers