Windows 7 Locale Settings and Values
Finding the various identifiers and values can be frustrating and difficult. Here is what i could find in regards to the language packs, and various user/system locale settings.
Input Locales (Keyboard)
http://technet.microsoft.com/en-us/library/dd744319(WS.10).aspx
Language Pack and codes (en-us) (User/System Locale Values)
http://technet.microsoft.com/en-us/library/dd744369(WS.10).aspx
Language Pack Default Values (User Locale/System Locale Values, Time Zone Names)
http://technet.microsoft.com/en-us/library/dd799301(WS.10).aspx
TimeZone Index
http://msdn.microsoft.com/en-us/library/ms912391(WinEmbedded.11).aspx
http://technet.microsoft.com/en-us/library/cc749073(WS.10).aspx
Hope this helps!