100172 Captcha bipass/ autoposting

I work with a popular site to post classified ads. I know someone has already bulit this program I am just looking for it. I am looking for a autoposter that I can login into several accounts or run through a list of accounts and post automatically to any post url i wish. This program will need to bipass the sites captcha code system and use proxies if possible. Please let me know if you have herd of this program or can build this.