customizing the urls

This is what I've been trying to figure out for a few days now, how do I customize the urls of my site. I have changed a few module names's. So I need for my url to match the module name. EX. sounds module is now called MP3s, how would I implement mp3s into the url where sounds is embedded? I hope I explained that correctly.

This can all be done by editing the .htaccess file in the root of your installation.

Thank you so very much for your response, I greatly appreciate it.

ok so I'm now looking in my .htaccess file located in my root directory and the only thing that I'm running into are the "blog", "ad" and forum- "group" lines. I'm not seeing the module names that I need. Am  I lookin gin the wrong .htaccess file?

I forgot that some modules (such as sounds) relies on this:

RewriteRule ^m/(.*)$  modules/index.php?r=$1 [QSA,L]

Which means you will have to make custom entries for some modules. I'll have to see what needs to be done to do this.