Php Experter Need (Iframe Database Input Experter)

Dear Friends. I am new In Programming section but I need some good update in my website. Actually I am puting in my website 1 Iframe & in there I am using 1 link like [login to view URL] You think for understand:-- My website [login to view URL] & Iframe I am uisng [login to view URL] [login to view URL] This Not my own website but when I am puting Iframe [login to view URL] then I am getting SignUp Page. When I am filled Signup form then Coming Next step to next step. Actually I am Puting [login to view URL] in Iframe for Signup Purpose so I need Good Expert Person Who Have good knowledge to possible done this signup automatically & Only Captcha show in the my website in Iframe section other all going in hidden. We must need Signup Data Going Save in our database & Database or javascript or anyother road to going filled this SignUp Form. If you Good Expert In php & design Section then It's very Easy work for you. For your understand I am attach my code in there.