magento mod rewrite not working help wanted(htaccess) :)

my situation.....

i have this url http://www.example.com/index.php/category?catid=3

i want to have this rewritten to

http://www.example.com/bikes/3

my rewrites on the website are enabled....so i have nice urls on the website for the products

the pages i want to be rewritten are my own modules for pages with text

i have put this in my htaccess

RewriteRule .* index.php [L]
RewriteRule ^bikes/(\.*)/$ category?catid=$1

i have tried about any thing like 1000 combinations but nothing seem to work also i checked if my htaccess is working but it does.First line works also redirect to google works.

Hope someone is able to tell me what i am doing wrong here?

I had this example around here, and I think you can work it out to your needs:

Pretty URL: /topic-41/favourite-cheese.html
Ugly URL: /viewtopic.php?t=41
.htaccess:

Options +FollowSymLinks
RewriteEngine On
RewriteRule ^topic-([0-9]+)/[A-Z0-9_-]+.html$ /viewtopic.php?t=$1 [NC,L]