Older Photography is not Georeferenced but some indexes exist to help you locate the 
photo needed.

An ArcMap MXD that makes viewing many of these photos much easier is located at 
\\vgisfile\Photos\HISTORICAL_PHOTO_FINDER.mxd. Hyperlinks for many 
of the Non-Georeferenced Photography have been added to index points that will 
allow the photo to be viewed in a popup window with your default photo viewing 
software. Image Catalogs (LayerFiles) and SDE RASTER Datasets are also present 
within the MXD.

INDEXES:
Some of the unregistered Photographs' indexes are located under 
\\vgisfile\Photos\#PhotoIndexes.


LAYERFILES:
For Georeferenced Photography, you can load the appropriate layer file from  
\\vgisfile\Photos\#PhotoLayerFiles into ArcMap. These are set to draw 
Raster Catalogs using the Wire Frame Index until you are zoomed into a 9 tile extent.

If you would like your imagery to appear sooner, you can change the display properties 
of the referenced catalog and save to your own personal layerfile in your workspace.

You can use the identify button to determine the name and location of the 
image representing the tile identified.

Some of these Catalogs are also represented in SDE IMAGES Database:
DQQ2004_UTM - \\vgisfile\Photos\Photos\2004DOQQS_Color_JP2_UTMNAD83
DOQQ99 - \\vgisfile\Photos\1999DOQQS_IR_JPG_NAD83
FDOT03 - \\vgisfile\Photos2003FDOT_BW_MrSid_NAD83
FDOT06 - \\vgisfile\Photos2006FDOT_Color_MrSid_NAD83
USAAIR03 - \\vgisfile\Photos2003AirPhotoUSA_Color_TIF_NAD83
USAAIR05 - \\vgisfile\Photos2005AirPhotoUSA_Color_TIF_NAD83
VOL2006 - \\vgisfile\Photos2006Vol_Color_MrSid_NAD83

A complete inventory of County aerial imagery is here - \\vgisfile\photos\#HELP_DOCS\aerialproject.xls