Ok, hope i can explain what i'm after clearly.
I currently have PS CS 2, PSE 5, Lightroom and also my Canon software installed on my PC. Now, i'm sure at some point on one of these programs somewhere i found an option to search for photos using various options such as search by aperture value.... search by camera model etc etc.......
Now i'd like to know where the hell i saw it cus i can't for the life of me see it now!!! maybe i dreamt it..... 
Anybody know what i'm talking about and can point me in the right direction??
Cheers 
Thanks very much. 

