authorize.net SIM installation instructions?

Hi,
where can I find instructions on installing authorize.net SIM. I searched but only found an article on authorize.net AIM module. Can someone direct me to where I can find the instructions? Thanks.

Anyone?

Another user would also like the Authorize.net SIM installation instructions. Trying to figure out what Authorize.net (SIM) -Not Configured means. As in, what's not configured despite all the AN info having been entered, saved and published.

I believe I have my Authorize.net account set up correctly, the hash installed, transaction key and api set the same as in my cart settings but am not getting any transactions that register on Authorize.net. Who is a pro at setting up sim on the cart? Thanks, Doug

Guys,
I did some research and just to let you know, that SIM stands for payments processed at authorize.net's site, meaning the customer enters credit card information at their webpage. AIM is when you have ssl installed and the customer enters the cc information at your website. I'm assumming most of you would want AIM right?
Thats what I'm doing.

Be careful with assumptions. I've found tons of information on Zen Cart and AIM. I'm posting because I'd love any constructive directions on Authorize.net SIM set up.

Thanks in advance!