"queue" position is info sent by the host who has the file (so there is nothing you can do to make that host give you the file any sooner).

The thing to do is right-click on the search tab of the file, and choose "Repeat Search" to find more hosts ("sources") for that file. Maybe someone else will have an open download slot. If any more sources can be found, they'll automatically be added to the list of sources that your download is trying.