All's well that ends well.
Nothing showed up in any scans except 75 entries that Ad-Aware picked up from IESPYAD that wound up in the trusted zone (??), and Pest Patrol found one Wintools entry. I read everything I could find on Wintools, and there was a single registry entry that I removed.
I uninstalled IESPYAD, rebooted, lost my internet connection, Norton threw up a warning that settings were changed, and automatically rebooted. My connection was back, I got a fresh copy of IESPYAD and now Hijack This is clean and back to normal.
Strange, but everything appears okay now. Thank you both again.