Forward date membership payment not working with backoffice authorize.net ARB

[wwatson13]

Currently running 4.4.5 and trying to figure out why the start date is not being properly passed to Authorize.net ARB when using the backoffice credit card payment form for memberships.  If you use the backoffice contribution credit card payment and setup a recurring payment with a start date in the future, it properly passes that start date to Authorize.net, however it does not work when using the membership payment form.  Additionally I noticed that the contact ID is also not passed to ARB when using the membership form.  I am suspecting that the parameter names in the back office membership, but I am not sure exactly where to find that code to verify it.

The authorize.net payment code has the following:

 $firstPaymentDate = $this->_getParam('receive_date');
    if (!empty($firstPaymentDate)) {
      //allow for post dated payment if set in form
      $startDate = date_create($firstPaymentDate);
    }
    else {
      $startDate = date_create();
    }

As well as for contact id:

$template->assign('contactID', $this->_getParam('contactID'));

[Eileen]

I can't comment on the main part of your question (although it probably was never added since I added the ability to do forward date for contributions on commission from a customer) but this

" I noticed that the contact ID is also not passed to ARB when using the membership form"

may cause the payments not to show. I'm fairly sure that has been fixed in 4.4 for a while so you should upgrade to the latest 4.4 (or 4.5 if you prefer).