I think there is a good reason why this module is still in alpha-stage ;)

I suggest you use the previous version (whatever that is) until 0.7 goes a little further. I also wanted to try the latest and greatest in taskbar-modules, but there were to many things I couldn't figure out with this one, so I switched back.

I think I remember jesus_mjjg (the author) "warning" about the state which 0.7 is in, so that it might not be such a good idea using this module as of now.