I am still in the process of installing it - the real issue with is with FedEx not the mod itself - they make you jump through some big hoops to get your app registered with them - it invloves about a ream-and-a-half of paper from your printer and a couple of packing envelops to them to get it going.
This is no fault of the author - and he wonderfull about helping get you up and running, it the FedEx side that has got us bogged down.
I personally have not had the time available to sit down and finish installing this - one of those jobs that keeps getting put off becuase there are 30 other thing that are more important - like filling all those orders comming into x-Cart
