This is for 1.1.4
Hide the background of clock & date
Use attached file to replace "Other.artwork" in System/Library/Frameworks/UIKitframework
(Make backup of your original "Other.artwork"!!!)
Hide the clock
Use attached file to replace System/Library/Fonts/Cache/LockClock.ttf
(Make backup of your original "LockClock.ttf"!!!)
Hide the date (does not seem to work on English, i.e.non localized iPhones; however works on some localized (e.g. Russian) iPhones.
Locate file System/Library/Frameworks/UIKit.framework/DateFormats/en.plist and open with an editor like Notepad++
(Make backup of the original "en.plist"!!!)
Find string:
<key>UIWeekdayNoYearDateFormat</key>
<string>EEEE, d MMMM</string>
Change to:
<key>UIWeekdayNoYearDateFormat</key>
<string></string>
Hide slider and its background
Go to System/Library/Frameworks/TelephonyUI.framework and delete files "bottombarkgndlock.png" and "bottombarknobgray.png"
(Make backup of these files BEFORE DELETING!!!)
Hide "Slide to Unlock" text
Locate file "SpringBoard.strings" in System/Library/CoreServices/SpringBoard.app/English.lproj/ and edit using Notepad++ or if it doesn't show correctly convert the file here:
Convert Apple Property list from binary to text XML
(Make backup before editing/converting)
Find string:
<key>AWAY_LOCK_LABEL</key>
<string>slide to unlock</string>
Change to:
<key>AWAY_LOCK_LABEL</key>
<string></string>
Hide the Slider button
Go to System/Library/Frameworks/TelephonyUI.framework/ and delete the file "bottombarknobgray.png"
(Make backup before deleting!!!)
Please respond if this helps and if somebody knows other ways to hide the DATE on the lockscreen on English iPhones. The method above with does NOT work for me (English, 1.1.4, I tried to edit ALL .plist files in corresponding directory but without success)