changing oil pump - how to get to it?
 

I have a 1988 Trooper II and need to change the oil pump. I have removed the oil drain pan, and can see the pick-up tube with the screen at the bottom of it, but can't figure out how to get to the oil pump.

Can someone help me with some instructions? I would really appreciate it. I'm pretty much a mechanical dummy, so the more specific the instructions the better.

I appreciate the help!!

-Bookman