Design Studio

   We have a purchased, customized PR32.1 and PR32.2 with no design specifications that is no longer working correctly—a ‘passed’ variable appears to be truncated and some dropdowns are not working.  We’ve recently applied a payroll patch and an Env Upgrade to 9.0.0.8 (from 9.0.0.7). I’ve been asked to fix.      
   I’ve recreated a new PR32.1 and PR32.2 based off the Lawson delivered forms and I’m reapplying all our customizations – problem is our current custom PR32.2 has fields that are defined with data sources that are not found or accessible under the properties I have in my ‘new’ version.  How can I make these sources available in my new custom?  Did I missing a step somewhere?  So far in Design Studio I’ve only created a new UI for both forms.  Do I need to go into the portal page area?(never done that before).  I couldn’t find any page remnants left over from the first design, so I’m figuring not. Appreciate any help I can get.