Contact Form 7 Captcha Error

I’m using Version 3.3 of WP. I have installed the latest version (1.3) of Really Simple CAPTCHA, and I am using version 1.0.2.1 of Contact Form 7. I got the CAPTCHA to show up on my contact form, but every time I type in the numbers I get an error saying that the code I typed is incorrect. The code that I am typing in is correct, and I browsed the forums to see what could be the problem. I saw that in another version, there was supposed to be a PHP file and a PNG file with the same name in the temporary directory. I’m not sure if that applies to this version? I have a PNG and a TXT file with the same name, and PHP safe mode is off. Can anyone please help? I had to take the site offline for a spam problem, but if requested I can give you the ip address for a host entry. Thanks!