InfoPath Dev

hi mate i tried isntall that program and it says i need windows nt etc but i have vista /??  also i forgot to add that i dont have it installed on any servers but isntead on my hd at the moment does that make a difference as to wether i can do the drop down autofill thingy ?

Hi all   i have a document form that i would like to add a program that when you click the drop down link the rest of the details will appear in the boxes, i have trauled the website and i believe its something to do with a 2ndary data source but i couldnt get it to work :(   i was wondering if anyone can help im willing to pay for ...