Here is an example of what I would like to do. This person was able to cut the guy and girl out of one file and match it to a different background. I have no idea how they did that? Are we able to do this with PD?

Windows 7 Home Premium
AMD Phenom (tm) 9750 Quad-Core 2.40 GHz
8 GB RAM
64-bit Operating System

The best way to do this is with a green screen chroma key set up. But it can also be achieved by using a mask.
http://www.youtube.com/user/PDtoots#p/u/22/9LWc_x1fVQ8

Oh wow! Thanks for the link to your PDtoots tutorials! Those are amazing!

For this project I am using a green screen for my cut out. I have an avi video clip of a fellow in an astronaut suit standing in front of green blocks. I am just not sure how to cut him out. Is there a way I can share my avi file here so you can see what I want to cut out? I am thinking the masking tutorial is much more complicated than what I will need to do.
Do I just create a mask for the green part of my screen? Thanks again for your help. Windows 7 Home Premium
AMD Phenom (tm) 9750 Quad-Core 2.40 GHz
8 GB RAM
64-bit Operating System

PDToots has tutorials on attaching a file to the forum.
But all you need is to use the chroma key tool. Click on the clip in the timeline. Then in the middle bar with the options click the modify button. In the modify window, click on the first eye dropper icon on the left side bar. You then click the color you want to take out. Put this video in track 2 and the video you want in the background in track 1.
Here is a link to a video tutorial on this http://directorzone.cyberlink.com/tutorial/#0_3_2

Oh boy! I can't wait to try this out tomorrow! Thank you so much! You're a peach!! Windows 7 Home Premium
AMD Phenom (tm) 9750 Quad-Core 2.40 GHz
8 GB RAM
64-bit Operating System