Joeqwerty is right on with that link.
The only you may want to double check is the permissions on the folder/file where your computers will be pulling the package from.
In terms of deploying software through AD, I would suggest this is the best way to go about it. As Joeqwerty mentioned earlier though, if you have other avenues available to you like System Center or PSExec, those will work as well. If you don't have these additional utilities available to you, a good command line - based utility built into win 7 is WMIC. Check out the technet link for that as well.