This Cydget Theme is primarily for the iPhone 5, iPhone 5c and iPhone 5s. However, it does work on other iDevices. Full support for these will be available shortly.
For now, you'll need to be able to access the file system of your iDevice using your preferred method. Once connected you'll need to navigate to the following folder: System -> Library -> LockCydgets -> iOS 7 LockScreen Weather.cydget -> script
Within this folder there is a file called 'config.js'. Open this file with you favourite text editor and follow the very simple instructions within. This is how you set your location to display the correct weather.
The cydget is available from the Cydia Store for $1.49. If you need help please contact firstname.lastname@example.org.