Hey, Mike!
I had Bosch plugs in before. As many of us around this forum have noticed, Bosch plugs do not play well with Ford ignition systems. I highly recommend not using their spark plugs in any Ford motor.
I replaced all of my sparkplugs and plugwires (for good measure) with Motorcraft products. This has solved my idle and poor mileage issues. Autolite plugs are essentially Motorcraft ones. If I remember correctly, Motorcraft and Autolite plugs are manufactured by the same company, but they are NOT identical. I haven't heard of any issues with Autolite plugs, but i wouldn't rule out your ignition system as a possible culprit to your idle issues. Do you have any other symptoms? Poor mileage, "skipping", no/low power? Codes?
As you have probably seen around this forum, rough idles are difficult to solve because of the array of essentials needed for proper combustion (i.e., air, fuel, spark, compression, etc.) If any of these components aren't working properly, your idle (among other symptoms) will be horrible.
Unless you have a scanner or have access to live PCM data, I would go through each combustion component category and narrow it down (for the "air" side, check your filter, MAF sensor, check for vaccum leaks, etc.; then for "fuel", check your rail pressure, filter, clean the injetors, etc.; etc.). As I've experienced, this "trial-and-error" process is long, slow, and can easily become frustrating. Unless your certain about the cause, cave in and pay for a proper diagnosis or buy a capable scanner. It is well worth the time and headache saved.
That's my two cents.
ERUSH