help with proxy please

Hi. I'm trying to configure proxyway, but i'm confused. When i enter
the IP into the list, pway checks it and it always comes back as bad.
also, is the port ## the number after the IP and the colon (its
usually :80 or :8080.)
how do i find good proxies that will work on pway?

ALSO- are those proxy sites that just let you enter the URL and surf
that way (privax, invisiblesurfing, etc) ok to use?

i appreciate all help.