Try a google for "EXIF" and "mac". There seems to be a few exif viewers out there. Can be interresting to look at and see how the different settings affect the photos.
Thanks for the advice - I did just what you suggested and I now have an EXIF Viewer telling me all my settings! Of course a lot of it is gobledegook to me at present but it's interesting to see that the poorer images I took have got very high ISO settings.
It appears that my cheeky little Rocky Robin was based on the following info:
Image Orientation: Top, Left-Hand
Horizontal Resolution: 300 dpi
Vertical Resolution: 300 dpi
Image Created: 2008:08:31 21:14:05
Exposure Time: 1818181/100000000 sec
F-Number: f/2.7
Exposure Program: Normal Program
ISO Speed Rating: 64
Exposure Bias: 0 EV
Metering Mode: Pattern
Light Source: Unknown
Flash: No Flash, Auto
Focal Length: 7.50 mm
Color Space Information: sRGB
Image Width: 1600
Image Height: 1200
Rendering: Normal
Exposure Mode: Auto
Scene Capture Type: Standard
Gain Control: Low Gain Up
Contrast: Normal
Sharpness: Normal
Subject Distance Range: Unknown
Color Mode: COLOR
Image Quality: FINE
White Balance: AUTO
Image Sharpening: AUTO
Focus Mode: AF-S
Flash Setting: NORMAL
ISO Selection: AUTO
Image Adjustment: AUTO
Tone Compensation: AUTO
Lens Adapter: OFF
Auto Focus: Center
Saturation: Normal
Noise Reduction: OFF
Image Optimization: NORMAL
Saturation 2: NORMAL
Guess I got lucky because whilst I'm no expert would I be right in thinking that most of my summary seems to indicate that the settings were on AUTO! :t: :-O