Great thread and well written tutorial!

I have kismet running with a Garmin 60 csx with log files saved. I am having issues with this command
"giskismet -x wardrive.netxml"

and receiving the following error.
Could not create file parser context for file "wardrive.netxml": No such file or directory at /usr/local/bin/giskismet line 425

I am sure it is something simple that I am missing but can't seem to pin the issue down. Any help would be greatly appreciated.