Forum OpenACS Q&A: Re: GPL and the use of GPLed Code in Commercial Products
No, I haven't tried your Windows installer; I don't have to use it to know that good automated pre-loaded database content should be really useful for demos and testing. I have heard from some people who have used your Windows installer though, and they were very positive.
Btw, I'm not sure why you seem to be worrying so much about GPL issues. AFAICT your company's Project Open work is well within the bounds of the GPL, and the OpenACS project has a long (informal, but long) history of saying that proprietary applications built on top of OpenACS are perfectly fine.
Really, the only question is how well or poorly your work will integrate with and be leveraged by other users of OpenACS and vice versa; nothing much to do with license issues, GPL or otherwise.