Composer, jpegs and 3D wireframes

Hi, I am very very very new to composer... so when you give a solution.. think you are telling a 5 year old please!

I have 2 wireframe models that I have opened up in composer in different layers (the tabs up the top), I have also brought in a heap of jpegs and they are on each tab up the top.

I want to try and do a presentation with the wireframes (3d models of an ore body) and the slices through the ore body (jpegs as composer wont let me bring in strings)

I have looked on the net and seen a video on how to do the presentation, but it only uses one picture with the different actors (it was the car exapmple with the tyres)

Can someone talk me through it in very simple terms please.. maybe even a powerpoint with pictures. you can email me at jkft2001@yahoo.com.au

Thanks in advance!

Kim