Sorry I haven't updated in a couple days, but I've been very busy. Today I want to show you an image captcha script I have been working on. You can see a demo here and the sourcecode here. Let me know what you think of it! 
Just in case you're wondering about the GET variable "r", I only added it for the JavaScript refresh script. You can do whatever you want to tell the script to generate a new image.
I also haven't gotten any submissions for the PHP contest! I was really hoping this would be a popular contest, but so far no one has made the effort 
August 10th, 2007 at 8:08 pm
There's a small bug with the captcha, sometimes the letters are almost completely out of the image.
August 10th, 2007 at 8:36 pm
Okay, now out of 50 refreshes, 0 were unreadable.