Putting Authorize.net transaction page into an iframe

The child page(page within the iframe) does not recieve the information from authorize.net. It should be showing a digital receipt, but no information is passed.

Using frames is not recommended for payment gateways. Is the form on your site or authorize's?
We've used authorize before and were able to use our own form. Are you using curl or just a html form to post the cc info?
If you try to print_r the post data upon return, does it appear in the parent frame, or is it just lost?
This receipt page; I presume that is on authorize's site then, correct?
In that case, I guess you wouldn't be sent any post data, so nevermind about that.

The form is on our site, it passes required info to authorize.  Can you please explain what 'Curl' is?  Several people have asked and they didn't explain what it was when I asked them.  Everything but the page that the customer fills the cc information out on (transact.dll) is on our page.

This may be easier than solving my issue, do you know how to do a custom form that collects the customer's data then submits that to authorize net?  I believe authorize calls this AIM, we did SIM to save time.  Let me know if I need to provide you with more information or anything.

Thanks in advance!

>>do you know how to do a custom form that collects the customer's data then submits that to authorize net?

Have you read the guide? -->http://www.authorizenet.com/support/SIM_guide.pdf
I think it will be able to answer most of your questions, especially about setting up the form and the appropriate field names.

And curl is great! It allows you to easily use an array of protocols to transfer data. So, for example, instead of having to use a form to send the user's data to authorize, which will also send them away, you have the cc form post back to itself, compile the info and make a post request to https://../transact.dll. Then it will send data back telling you if the transaction was approved or not, among other things of course, and the user never leaves your page; just their data.
Good tutorial-->http://www.hudzilla.org/phpbook/read.php/15_10_2

And now that I've done a little more searching, zend comes through as always and has a class that would do all that for you.
I wish I would've search for this previously. :) -->http://www.zend.com/codex.php?id=1194&single=1
Although, that says it's for AIM. I'm not sure if curl will work w/ SIM because here's a sample authnet SIM script that uses a form instead-->http://www.scsystem.com/authorizenet.htm

If you have the time, I would definitely do as much on your own site for, as you said, profesionalism.
Good luck.

Awesome, tomorrow when I get working on this again I will test these methods out and let you know which is best!

Thanks so much for finding this information...my team and I literally spent 6 hours looking for help/ideas for this!