We currently use Authorize.net as our gateway. Was told that ShopSite can be integrated to use Authorize.net servers instead of our current host's servers through the Server Integration method (SIM).
I found this: http://developer.authorize.net/api/sim/
Then this:
https://developer.authorize.net/integration/fifteenminutes/#hosted
Am I looking at the right place? If so, which file should I edit in ShopSite?
Site is here: http://www.hhhincorporated.com, currently hosted with Verio.
Thank you!