been having problems with a 24" iMac running 10.6.8, running slow and eventually would not run at all. Reinstalled system software and then upgraded to 10.7.
I have some data on a previous time machine backup that I would like to recover. Adding it to user library does not work as I get a message that it is locked. Any way to unlock it?

This might be your problem.

Locked file error in Mac OS X Lion? « sundog.ca (http://sundog.ca/blog/?p=413)

thanks for the reply
still does not work.......