Could anyone help me please?

My zencart 1.5.4, I've installed
Edit orders4.1.5
Admin new order 141

Everything is good and no problem. And then I installed TyPackageTracker-3.1.4a. I overwrite all files.

I found that I cannot edit the Customers address, Bill address, Delivery address, payment method, email address of customers, telephone no., Qty, product, Model, tax, price(ex) or price(in),,etc All I was able to edit them before installing TyPackageTracker-3.1.4a.

I'm not sure whether I should merge some files before installing.

Thanks very much in advance!