v151 Switching From Authorize.net (SIM) to AUthorize.net (AIM)

All,

In the past, I have had a shopping cart that is using the SIM version of Authorize.net....this has made the customer go to Authorize.net when they enter the credit card. I am trying to change this so that they stay on our website. However I can't seem to turn on the AIM module for some reason. It constantly says the following: "For security reasons, Installation of this module is disabled until your Admin is configured for SSL."

The deal is, we purchased the SSL and have updated the config file in both the Admin section AND the includes section to reflect that the website is secure. Also, if I type https://website.com, it obviously works in SSL mode.

But despite making this update, I am not able to install the module, as it continues to give the me the ALERT notice.

Does anyone have any suggestions? Ultimately, I am wanting the customer to have a seamless experience shopping (staying on our site) but being very secure. Currently, I am not offering this, and I think I am loosing customers as a result.

Thanks!

Chris