Marty – If you just need to get projects into the system with general details you’ll need to:
Populate the Departments lookup table.
Create the custom fields to collect the data-points you are looking for.
Add the custom fields to the Projectx Details Page(s) (PDP’s) associated with the Enterprise Project Type you are using. (Project Center > New > Enterprise Project ?) by editing the Project Fields web-part on the PDP.
To make the Schedule page available (For Schedule / Resourcing) you’ll need to add the Schedule Page to the list of available pages in the Enterprise Project Type you are using.