Image meta data

I display the EXIF data under the images at my site. but they are not saved in the metadata it seems.

this is all the meta data:

a:6:{s:5:"width";s:4:"1024";s:6:"height";s:3:"683";s:14:"hwstring_small";s:23:"height='85' width='128'";s:4:"file";s:12:"IMG_4799.jpg";s:5:"sizes";a:4:{s:9:"thumbnail";a:3:{s:4:"file";s:19:"IMG_4799-170x85.jpg";s:5:"width";s:3:"170";s:6:"height";s:2:"85";}s:6:"medium";a:3:{s:4:"file";s:20:"IMG_4799-250x166.jpg";s:5:"width";s:3:"250";s:6:"height";s:3:"166";}s:5:"large";a:3:{s:4:"file";s:20:"IMG_4799-550x366.jpg";s:5:"width";s:3:"550";s:6:"height";s:3:"366";}s:7:"galleri";a:3:{s:4:"file";s:20:"IMG_4799-950x633.jpg";s:5:"width";s:3:"950";s:6:"height";s:3:"633";}}s:10:"image_meta";a:10:{s:8:"aperture";s:1:"0";s:6:"credit";s:0:"";s:6:"camera";s:0:"";s:7:"caption";s:0:"";s:17:"created_timestamp";s:1:"0";s:9:"copyright";s:0:"";s:12:"focal_length";s:1:"0";s:3:"iso";s:1:"0";s:13:"shutter_speed";s:1:"0";s:5:"title";s:0:"";}}

this is the actual data:

File name:	IMG_4799-1.jpeg
	File size:	106864 bytes (1024x683, 1.2bpp, 20x)
	EXIF Summary:	1/6400s f/2.8 ISO100 175mm (35mm eq:280mm) 

Camera-Specific Properties:

	Equipment Make:	Canon
	Camera Model:	Canon EOS 7D
	Camera Software:	Aperture 3.2.2
	Photographer:	Patrick Leisegang
	Maximum Lens Aperture:	f/2.7

Image-Specific Properties:

	Image Orientation:	Top, Left-Hand
	Horizontal Resolution:	72 dpi
	Vertical Resolution:	72 dpi
	Image Created:	2012:02:19 13:39:01
	Exposure Time:	1/6400 sec
	F-Number:	f/2.8
	Exposure Program:	Aperture Priority
	ISO Speed Rating:	100
	Lens Aperture:	f/2.8
	Exposure Bias:	0 EV
	Metering Mode:	Spot
	Flash:	No Flash, Compulsory
	Focal Length:	175.00 mm
	Color Space Information:	sRGB
	Image Width:	1024
	Image Height:	683
	Rendering:	Normal
	Exposure Mode:	Auto
	White Balance:	Auto
	Scene Capture Type:	Standard

Other Properties:

	Resolution Unit:	i
	Exif IFD Pointer:	224
	Exif Version:	2.21
	Image Generated:	2012:02:19 13:39:01
	Image Digitized:	2012:02:19 13:39:01
	Meaning of Each Comp:	Y
	Shutter Speed:	1/6317 sec
	DateTime Second Fraction:	00
	DateTimeOriginal Second Fraction:	00
	DateTimeDigitized Second Fraction:	00
	Focal Plane Horiz Resolution:	5715 dpi
	Focal Plane Vert Resolution:	5808 dpi
	Focal Plane Res Unit:	i

i use Mac, Aperture and WordPress 3.3.1

anyone with the same problem? Howw do i fix it!