They were referring to running the script after imaging as more of setupcomplete type of thing. This won't work using CloneDeploy scripts since they run during imaging, you need something to run after imaging, but I think everyone is making this too complicated. I believe @vbourke does something like this.
All you need to do is create a sysprep tag in CloneDeploy with the opening tag:
and closing tag
In the tag contents you put in the ou you want like:
Or you can use custom attributes
Assign the sysprep tags to the image profile.
As long as your sysprep answer file has the MachineObjectOU tag somewhere in it, CloneDeploy will update it with the appropriate information based on the image profile, and sysprep will take of the rest.