Looking for the S2U2 screen lock

[sumner]

I am new here, it's a great site, and it's the first time I have seen the option to have the same phone lock as the iphone. I've found two links to download and neither have worked for me, both from very old posts. Can someone please give a current link to a good screen lock slide? I keep seeing it referenced as S2U2. I'm using an HTC Touch Diamond.
Thanks