In Firefox, create a bookmark with this location:
javascript:var%C2%A0s='%s'; url='http://tah.openstreetmap.org/Tiles/info.php?x=%s&y=%s&z=%s'; osm.wiki/Tag:t=''; qc=0; chunks=url.split('%s'); for(i=0; i');
and set the bookmark keyword to something like "tah". You can then go the location bar and enter "tah" followed by the x coordinate, y coordinate and zoom level of the Osmarender tile you're interested in. For example:
tah 1976 1327 12
sends you to
http://tah.openstreetmap.org/Tiles/info.php?x=1976&y=1327&z=12
