Hello Jim,
Welcome to this Microsoft Project General Questions discussion group.
The Microsoft Office Project 2007 FAQ page describes the answer to your
question as follows:
"Office Project Standard 2007 is the latest version of the desktop project
management program. As a stand-alone product, Office Project Standard 2007
helps project managers, business managers, and planners to manage and plan
projects independently with familiar, easy-to-use tools. Office Project
Standard 2007 is not designed to exchange data with Office Project Server
2007.
Office Project Professional 2007 is the desktop client that is also used to
connect with Office Project Server 2007 as part of the Office EPM Solution.
Office Project Professional 2007 offers all the tools found in Office Project
Standard 2007, and when used with Office Project Server 2007, it also
provides powerful EPM capabilities such as collaboration, management of
shared resources, portfolio management, and reporting across projects and
programs run by different project managers."
I hope this helps. Please let us know how you come along with it.
Best regards,