Calling a vi from a main vi

Hi,
I need to create a main VI that calls other vi by clicking a "OK" button. 
I have all VIs created but I know that I have to create subVIs of the ones that I'm going to call and I don't know how to do it. I guess I need it to create it some how that it can be open by pressing the OK button.
I know also that some thing has to be done in the main VI in order to open and close that VI but I'm actually pretty lost with the whole process.
If someone can  explain how to do it, post a VI that does the whole process, or send me a link that explains the whole thing it would be really really great.
The other problem is that I have labview 2010. I've read things and find some examples but they are implemented in a newer version of labview and I can't open it.
I would really really apprecite the help.
Thanks in advanced,
R

Sure.
It's actually a proyect.
Right now I've only implemented the first button so the first VI should work but it doesn't.
There several subVI in the proyect but you should try "Raiz 2" as the main VI and pressing only the first button, a th subVI that should open is "Pestaña 1- Señal para raiz 2".
Tell me if you are able to open it because I realized they where in the same folder. I think you'll only be able to open the VI that you need.
Thank you VERY much!!
P.D. It took a while cause I didn't have zip but rar.
Attachments:
Aprendamos de telecomunicaciones.zip ‏2519 KB

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    Highly reusable methods are candidates for static such as utility methods that may be used multiple times.This is true if this methods API remains consistent and does not care a bout the surrounding class. Usually such a method would require all its fields to be provided by parameters or as static members as any instance variables would not make this methods reusable.
    in jverd's example you can see that many related classes may be interested in finding out how many people have been created and they may wish to know so at the same time. It certainly makes sense to provide such a method as static as it does not change and most likely never will. More importantly all interested classes now are assured of seeing the exact same method because that is what static is: It exposes the same to all interested parties.
    Edited by: Yucca on Oct 19, 2009 6:35 AM

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