You can use several approaches when uninstalling Office 2007 applications.

msiexec.exe /x {productcode} /qb
Configure the setup.xml file and run setup with /unstall /config

 
Here are some examples of uninstall commands
Office 2007 Visio Profesional: "\\Server\Microsoft Visio 2007\setup.exe" /uninstall VisPro /config .\VISPRO.WW\uninstall.xml Office 2007 Project Profesional: "\\Server\Microsoft Project 2007\setup.exe" /uninstall PrjPro /config [...]

Download a step by step description of customizing and deploying Microsoft Office 2007 with Microsoft System Center Configuration Manager 2007.