Well you should tell your business leaders you've learned those are incompatible products. VMware Workstation and VMware Player are VMware's compatible products, which is VMware's decision. Have you not checked with VMware on this yourself yet?
Now stay out of this since you obviously can't solve this issue.
What are you talking about, not only did I list VMware's compatible products for you, I gave you a link for how you can manually disable the Vista security features to run the incompatible server version of VMware if you so choose. Looks like you'd just rather keep complaining though, and you say you're holding up your business over this?
All of which I did in the first two hours I worked there. You can't change bureaucracy in one day, dude. I have found a work-around, but it's inconvenient, so I'm looking for the actual solution.