Bypass CAPTCHA by matching images

Hello.

I'm playing a simple textbased game. And then I thought why not try to create a bot. But there's one problem. A CAPTCHA...
But this captcha is very simple. It's 3 random numbers wich always uses the same font, size etc.
For the simplicity we can say that it uses 9 different images and randomly puts together 3 of em.
I then remembered that Kuroros automatic hiscore lookup mathed pre-made images with the RS text inside the java applet to read the text.
(Some one still got the source that he released? Would be great to study it)

So for my question:
How can I make a program that does something like this:

PHP:

      If imageA.bmp exists on screen Then
      captcha &= a
      End If 

EDIT:
The captcha:

 

You would probably want to find a FindImage or FindBitmap function written in VB.Net somewhere on the internet.

You could then run the function 3 or 4 times for each number's image then based on their coordinates your program would determine which numbers are further to the left and could then put it all together. Hopefully this makes sense to you if not I'll try to clarify a different way or something...

 

There's actually a nice example here. with almost no work involved
http://www.captchakiller.com/vb-net-example

I used it on one of my auto-login bots for SRO.... fun times

 

I can't really find any sourcecode examples for that
I only found this, I want the source for that http://www.youtube.com/watch?v=qCSc8YRJcUQ

 

FlamingIdiots actually posted one on these forums although I found it with a Google search.

Maybe you can use it as a starting point at least or contact him and maybe he'd be willing to help more. I'm not much of a VB.Net person.

http://www.sythe.org/archive/index.php?t-155248.html