For the posters looking to change sounds or slider wording, if you haven't already found the answer, you need to go into a reg editor, and make the changes that way, like the ols S2U used to be. Thay are working on a config menu for these, so hopefully something will be available soon.
EDIT: ask and ye shall revieve:
l3v5y posted this over in XDA:
I've just created a little app for changing the text, and the wave files that are played.
A shortcut is created in the same folder as other S2U2 apps (iLock, S2U2, S2U2Settings)...
link:
http://forum.xda-developers.com/show...&postcount=923