You're forgetting that a Uni-Chip is a "Piggy-Back" chip... NOT an ECU, perce...
All it does is intercept the signals from the sensors and modify them before sending them on to the ECU.. It simply fools the Ford management... !!!!
So, this still doesn't help with TB's, as the Zetec management most likely won't work... wot with it requiring a MAS/MAF signal...
See if you can sell it to someone who's 'zetecing' and old fezzy or scort, and buy a dedicated system...
Luv
Chrisie...