What I did not understand from that tread is can I do actual shipping with that approach? I mean provide shipping information, get shipping labels (or something to print labels localy) and other information back?

>>Anyone has done something like this? Any magor points, words of wisdom?
>
>As far as Fedex goes, you may want to check this thread #760667. There has been some work done in regards to this which might give you a good start.