CodeWarrior 8.8 is the latest version CodeWarrior for MPC8349, there is no standalone tool to do flash programming.
You could login "www.nxp.com", then download CodeWarrior 8.8 installation file and Patch 8.8.6 from My NXP Account->Software Licensing and Support->View accounts->NXP Software->CodeWarrior Networked Suite -Specialist Level->8.8 CodeWarrior DS for Power Architecture, Professional Edition (Windows Hosted) WIN
Please install CodeWarrior 8.8 first, then install Patch 8.8.6 to update CCS USB driver for CodeWarrior TAP.
What problem did you encounter? Would you please describe your problem in details?