Authorize.net ARB Integration

I have experience implement [login to view URL] AIM method, however, I am needing to implement the ARB service for this project. I have created the forms that pass the values to [login to view URL] using the AIM method, however, I need it modded so that it passes along the subscription interval length, unit, startdate and total occurrences. I will ALSO need it to write data to my database - I have those update queries set up as well within the form. I am using PHP for this site, and it needs to utilize the AIM method.