To prevent the jumping you would have to add an additional step before the pressmove:
con.on('mousedown', function(evt) {
var ct = evt.currentTarget,
local = ct.globalToLocal(evt.stageX, evt.stageY),
nx = ct.regX - local.x,
ny = ct.regY - local.y;
//set the new regX/Y
ct.regX = local.x;
ct.regY = local.y;
//adjust the real-position, otherwise the new regX/Y would cause a jump
ct.x -= nx;
ct.y -= ny;
});
This will set the new regX/Y to the current's mouse-position to prevent the shape/image from jumping.
For the cursor: You could either set this via CSS:
canvas {
cursor: default !important; /* in this case you couldn't set any other cursor via EaselJS though */
}
OR you can set this via EaselJS: http://www.createjs.com/Docs/EaselJS/classes/DisplayObject.html#property_cursor
con.cursor = "default"; //or 'pointer'...or whatever cursor you want it to be
// you have to activate enableMouseOver though on the stage for this to work