Version 1.3 is available at the link now.
Changes:
selecting powexec_name now provides you with a list of powers to select as parameters
"custom" command option to allow you to use things such as +mouse_look, ++autorun, etc in your bind.
Ability to go back and make a change to a previous bind you set up prior to saving it to file (drop down list with all created binds)
Next up will be the ability to load previous binds out of a file, I got started on that, but didn't have time to finish it due to work expecting me to actually do my job tonight.
Cheers,
The Spyder