The digital % of the battery charge is able to be activated in the settings of S2U2. You get the percentage in the upper right corner instead of the battery image.
To change the slide text, you can do one of two things. In recent versions A_C has located the text files for the sliders (unlock, answer + answer/ignore) in the lang.ini file.....sooooooo:
1- You can save the lang.ini file to your PC, open it with notepad, change the slider text, save with same name (in UNICODE), move back to your PPC (it is in the S2U2 program folder BTW) and then stop + restart iLock2.
2- You can go the easy route and download mushipkw's customizer app and do it right on your PPC!!!! You can install it on your memory card and it is pretty easy to use!!
Found here:
http://forum.xda-developers.com/showthread.php?t=442681