Looking for a php based proxy script that works with CL

I know of and have tried some scripts that install on your webserver and act as a proxy for surfing the web 'anonymously.'

While most work will, I have yet to find one that will allow me to post on Craigslist. It's not that I can't login or navigate CL, but it's the stupid recaptcha that doesn't show up in the browser. I get to the posting screen, submit my post, then when it asks for recaptcha the recaptcha doesn't appear.

So...does anyone know a PHP based proxy that will work with CL?

Thanks