My b2evolution Version: 1.8.x

I've looked at this so many times that it hurts, it also seems that some of the old posts have been deemed out of date for newer versions. Anyway, for programmer novices like myself can someone please explain the step by step for changing the URLs for categories?

My site: http://www.executivefraud.com/
Stub file: fraudblog.php
.htaccess location = publichtml/executivefraud/
static file = ? is that same as stub?

Current category link is:
http://www.executivefraud.com/fraudblog.php?cat=35
would like it to be
http://www.executivefraud.com/fraudblog/Accounting_Scandal

Any thoughts? I'm to the point that I would be happy to throw some bucks to someone if they would just mod it for me but I'm also happy to learn if someone has some patience. Thanks

Shawn