I've tested this setup on MightyMike's Sense UI 2.1 02.04.2010 rom for the past 2 days and didn't have any issues. Thank strra on post #9 for cutting out one step and intregrating the disableslidewakup registry entry into the cab.
1) Install
LockDevice_V1.6(disableslidewakeup).CAB (credit:
here and
strra)
3) Go into the start menu and select LockDeviceGUI
4) Enable the Settings that you want. I have Enabled, Lock if music playing and Lock on Screen Off selected.
5) Click Save
6) Your good to go!
I also attached the Dusk_6.5_Lockscreen_v3.0.cab if any of you wanted a different lock screen look. Go
here for link to author and screen shots of the lock screen.