Doubts about the functionality of TC 7

Hi, thanx for the answers. Last time I was testing a web page with QTP . It had four non editable text boxes which can only be filled by certain values already present.There was an object near the text box which if clicked showed a pop up containing certain values. it had another text box and a search button. Although the contents to be filled in the four non editable text boxes were different the process of entering values was the same.That is every text-box could be filled with a value from pop up opened by clicking on object associated with each box. What QTP did is it identified the search button of the first text box and as the rest were similar it could not uniquely identify them.It had to be done manually. This did not happen in TestComplete.Why?