1. Download this file:

http://www.touch-mania.com/homescreen20/english/en.plist.zip

Unzip the File and login via SSH (Winscp, Cyberduck etc.)

2. Make a Backup of the file System/Library/Frameworks/UIKit.framework/DateFormats/en.plist

(e.g. rename the file)

Replace the file : System/Library/Frameworks/UIKit.framework/DateFormats/en.plist
with the file, you downloaded before.

That's it, now you don't see anymore 2 Dates on lockscreen!

To change the Location of the Weather Widget you have to go to /Library/Themes/HomeScreen_2.0ENG.theme/
and open the 'configureMe.js' File

Find this: var locale = "ASI|PH|RP073|MANILA"

and replace ASI|PH|RP073|MANILA with your City:

For example: var locale = "Moscow, Russia"

The first word is the City and the second is the country.

That's all.