Phpmyadmin Error.

[Gtwow]

I downlaod XAMPP the newest version and when i was installing at the end it said error this port or something like that is already in use and i am running this on windows 7. Then my mysql and apache is running and i go to the internet and type in the bar localhost/ It comes up with this big white page saying It Works! Then i type localhost/phpmyadmin and it says the server cannot be found "oops thins didn't go so well" That's what it says and everything is running on xampp.
Remember i am running on windows 7.

Thanks hope you can help me Gtwow