sircharles84,
Welcome to LGM! Can always use new bass players around hear.
TAKE OFF YOUR CAPS LOCK. Around here that's considered shouting. And not the kind of shouting we do in B-flat

Look through the tabs and watch a lot of the videos that are posted on this site and on YouTube. Although they don't tell you specifically how to do fills, you'll see enough examples of that (from simple to mind-blowing) that you'll be able to pick it up on your own.
I'd also suggest getting Ed Friedland's book, "Making Walking Bass Lines". It talks about ways to add approach notes to walking bass parts. Very useful in church settings.
Peace,
James