Satellite image of Lahore at good resolution is available at PKMaps. These can be used for any GIS/RS assignment and analysis.

Source of quoted material: http://pkmaps.freeforums.org/lahore-satellite-imagery-at-18x-zoom-t31.html

You can find all the Yahoo imagery you need for mapping Lahore at 18x zoom level at the following RapidShare download link:

http://rapidshare.com/files/176314336/lahore_yahoo_satalite_1.zip
http://rapidshare.com/files/176316142/lahore_yahoo_satalite_2.zip
http://rapidshare.com/files/176317579/lahore_yahoo_satalite_3.zip
http://rapidshare.com/files/176320007/lahore_yahoo_satalite_4.zip
http://rapidshare.com/files/176322298/lahore_yahoo_satalite_5.zip
http://rapidshare.com/files/176321238/lahore_yahoo_satalite_6.zip
http://rapidshare.com/files/176324063/lahore_yahoo_satalite_7.zip
http://rapidshare.com/files/176325590/lahore_yahoo_satalite_8.zip
http://rapidshare.com/files/176324388/lahore_yahoo_satalite_9.zip

These zips contain the Ozi Explorer .map files and embeded merged images in jpeg format.
They have been downloaded from Yahoo using gMapMaker.
There are 9 files in total so that Lahore can be split up into 9 portions.
You can use these Ozi map files along with their image files in GPSMapEdit for your mapping.
Depending on where you unzip the file contects you may need to edit with a text editor the .jpg file path on 3rd line in each .map (Ozi Explorer file) to point to the right location of its associated .jpg file for the .map file to work.
The original jpeg tiles from Yahoo at 18x zoom downloaded by gMapMaker can be found at the following rapishare links:

http://rapidshare.com/files/176831705/yahoo_satallite_imagery_at_18x.part1.rar
http://rapidshare.com/files/176833586/yahoo_satallite_imagery_at_18x.part2.rar
http://rapidshare.com/files/176834619/yahoo_satallite_imagery_at_18x.part3.rar

PS: You will need to download all these .rar files and run winrar to extract them to one folder.
Mobile GMaps can users also benifit from these files.