Help Locking message threads/Widgets/LauncherPro

[Alye]

Hi, Is there any way to lock a whole message thread instead of doing individual locks? I have a 600 something text thread between me and a guy I am talking to, and yeah call me crazy but I dont want to accidentally delete it xD ... are there any apps in android market that will force lock the whole thread? Also, is there any way to lock widget placement, such as from Widgetsoid, and lock LauncherPro docks/shortcuts? I accidentally once removed shortcuts cause of it being in my pocket and I had to redo my whole dock. Thank you !