2 Shawn: answered to email.
About exploits and 'malicious activity'. All latest versions (both ZO and IC powered) have a built-in files scanner. Scanner can be run only if you visit your admin area. If you updated your copies via network mass-updater, and haven't visit admin area of each site, scanner WON'T run.
I put this scanner to menu in the new, not released yet build, so you'll be able to scan/fix all files at any time.
But I repeat, latest builds can't be infected if you visit (at least once) your admin area after update.
If you still suspect that something goes wrong, contact me (
kildoozer@scriptpulse.com) with Tp's access info, I'll help asap.