terminal and logKext v2.2

I have used the key logging logKext for months and it has worked fine. It has been a couple months since I last logged in. And now when I try to type in the first prompt of "sudo logKextClient" it says, "command not found." Why all of a sudden is this happening? The only thing I may have done since last using it is plug in my IPHONE to upgrade to 6.0, but nothing as far as I can recall to the computer.

I have read many threads on this, and nothing helps.
PS, I'm operating on 10.5.8
Thanks,

Scott

Try "which logKextClient". Do you know where it was installed? Have you or something you installed changed your $PATH?
Check your dot files, .bashrc and .bash_profile etc.