How do I get the value of a textbox with Powershell .ASP extension?

How do I get the value of a textbox with Powershell .ASP extension?

I've been tasked with creating a website using the .ASP extension for
powershell,
(http://visualstudiogallery.msdn.microsoft.com/10117a5f-9b5a-4d48-8063-ef42fe112e7e).
However, I am absolutely clueless when it comes to powershell, and on top
of that, it very clearly seems like it isn't meant for web development.
However, I have some textbox in my HTML form, <input type="text"
name="test" value="TEST">, and I need to use powershell to retrieve the
value of the textbox.
I have tried something from my limited knowledge of powershell, which was
$val = test.Value.ToString() to no avail, and I can't find any resources
on the web to guide me through this part.
I appreciate any help.