How to use CURL to 'Click' a button on a page and preserve the Cookie

I have an interesting situation. I have a URL that returns data based on a 'search' parameter within the URL.. example: dvd_search.php?type=title&search='SomeData'

The Website has different areas that can be searched. Each are is accessed by 'clicking' a button (link) that takes you to that particular Page. From there you can query for data that is related to that Page/category.

The interesting part of this that the actual resulting URL looks the same no matter which page you are on... except it will only return data that is apropos to the page you are on.

I am trying to automate the Query process from within a VB.Net program and I am trying to use CURL to get the data into a file that I can parse.

I am not at all versed in the  use of CURL but I do know that this can probably be dome in CURL if I could figure out the proper syntax that would perform the desired function..

I am guessing here but I am assuming that the key to making this work is the 'Cookie' that is being generated, probably indicates which page 'I' am on and which 'Data Set' to use.

Any help is greatly appreitated.

Thanks in advance
Rick