The standard method for getting around CAPTCHA pages is to either
hire cheap labor
create a very popular page of your own - usually pron
copy the CAPTCHA image to your page
get the input from someone who happens by your page
send that input to the original page
Otherwise, you'd need to create some seriously smart image processing. Perl would be a great choice for that; once you have some code and get stuck, post it here and we'll be happy to help.