Multi-State Work Location Taxing - PeopleSoft 9.2 Payroll For North America

We are looking for direction on how to set up the PeopleSoft Payroll/HR System for an Associate that works 75% in a NJ Work Location and the remaining 25% in a NY Work Location in each pay week. Majority of the employees will be Exempt. We are looking for the system to tax the Associate in both States for Withholding as well as any Unemployment and Disability Taxes based on the % in their set up. The Associate's Job Record will have the primary NJ Work/Tax Location so we are looking for direction on how to set up the other