You didn't say you opened it. You didn't say that your store wouldn't
take it back. Each time you post, you provide more information. It's
like pealing an onion!
Suggest you contact a specialist software supplier who has expertise and
can meet your needs to ask their advice. Specifically ask them if you
an upgrade as you want,and confirm with them that if they say it is ok
and in fact it isn't you can return the software for full credit.
I guess since you refer to BestBuy you are in the USA as they area just
local USA-based corporation. I don't have any recommendations for
USA-based specialty software vendors. It's been a long time since I
ordered software from a US vendor. The ones I can think of no longer
seem to be findable via the Internet.
Grey Matter
http://www.greymatter.com/ in the UK is the sort of company
you need to get on the phone with and ask their advise.
Why not just go buy a copy of Visio Pro and be done with it.
Hope this is useful to you. Let us know.
rms