After installing the Tool,

Go to start-->all programs-->repository server-->repository server setup

cofigure there the port number and admin password..clik ok.

Then go to service .. right clik on Informatica repository service.. clik properties.

Then click on the log On tab.. and click the log to local computer radio button there. Click ok.

then start the service...

lemme kno if any probs further..

and about license keys for some body... if u already got it.. ignore..

else scrap the powercenter version.. will try to give u.