Create requests either with HTTP POST or through HTTP GET (by calling URLs like http://tah.openstreetmap.org/Request/create/?x=1&y=2). Also with the URL scheme you can additionally use the priority= parameter (default 3), or request a specific layer by calling e.g. "&layer=1&layer=2" which would request only layers 'tile' and 'maplint' (see the layer selection box for possible values).

