For whatever its worth to anyone, here's what I did on my htc Touch Pro. I installed throttle lock, set my unlock pattern to a simple pattern. I then copied the throttle lock skin pngs to my desktop, opened them up with photoshop, made them transparent and replaced the ones on my phone with the new ones. I also replaced "back.png" to a png image of a lock I found on xda (resized to 240x340). I then edited skin.xml to make clock font size 36 and set clock time to "h:mm" for 12 hour format. Lastly, I installed "Don't Touch Me" alarm software (which is Gsensor based) and set it to open automatically run ThrottleLock when I arm it.
Code
http://www.freewarepocketpc.net/ppc-download-dont-touch-me.html
I made a shortcut to Don't Touch me and one for Throttle Lock on my programs menu and whenever I want to lock/arm my phone.. I can either choose the throttle shortcut for a simple lock of the phone or the Don't Touch Me shortcut to lock
and arm it. Once armed, the phone locks with throttle lock and the phones gsensor picks up any phone movement and triggers the Don't Touch Me warning sound (you can custom the sound), continued movement triggers an alarm (also customizable) and there is no way to lower the volume or access the phone programs without unlocking throttlelock and disarming Don't Touch me (which can be set with or without a code). Since I made all pngs transparent, there are no ugly pattern dots on the Throttle Lock screen. Just a nice graphic of a lock and the time. You should have seen my girlfriends face when she tried to access my phone after I stepped away for a minute. It was hilarious! Anyway, this scheme works great for me so I thought I'd share it.