.htaccess help request

[Diablos]

Hey guys,

I don't do too much messing around with htaccess file other than simple rewrites and redirects but I have run into a problem today modifying some 3rd party software.
We got any experts on here that mind giving me a hand?

Here is the deal...

Url currently generates at http://www.example.com/system_name/news.php?itemid=10

I want it to go to http://www.example.com/system_name/news-item-010.html

-Firstly is the possible?
-Secondly my usually tactic of trying it is thrown out because i need to "add a digit to the identifiers.
-Thirdly, the 3rd party software has its own crazy htaccess where do i put code and what do I put.

For my own credibility my guess would be

Options +FollowSymLinks
RewriteEngine on
RewriteRule news-itemid-0(.*)\.htm$ news.php?itemid=$1

I have attached the current .htaccess file just so you guys can see if you want to help but obviously had to do it as a .txt

Thanks.