OK... so, this may sound dumb, but are you right-clicking on the image file & selecitng "Print"? Because, when I do that on Windows 7, it brings up the print wizard where I can select:
-- the printer (if I have multiple printers installed)
-- paper size (letter, A4, legal, etc.)
-- Image quality (600x600, 1200x1200, 2400 Image quality, etc.)
-- paper type (plain paper, bond, rough cotton, etc.)
-- how many copies I want to print
-- whether I want the picture fitted to a frame on the page or not
-- how big I want the picture to be (9x13cm, 10x15cm, 13x18cm, wallet, contact sheet size, or full page)
-- more advanced options (sharpen the image for printing, only showing me options supported by the printer, color management, etc.)...