i like zc too, been using osc since 2001 and migrated to zc back in 2004 but it's too much of a pain to keep update with the core edits. i'm here to sell and make money, not spend most of my time worrying about zc crashing or being outdated because the newer version of php or mysql won't work with it and risking a breach.

zc, imo, isn't up with the times, again my opinion