Microsoft has published a serie of HandsOnLab for InfoPath 2007:
Lab 1: Publishing an InfoPath 2007 Form Template to a Server Running InfoPath Forms ServicesLab 2: Deploying and Managing InfoPath 2007 FormsLab 3: Integrating InfoPath 2007 with the Data Connection LibraryLab 4: Enabling Digital Signatures in InfoPath 2007 Form TemplatesLab 5: Importing Word Forms into InfoPath 2007Lab 6: Using InfoPath 2007 E-mail FormsLab 7: Restricting Permissions to InfoPath 2007 Forms and Form TemplatesLab 8: Using the InfoPath 2007 Object Model and Visual Studio Tools for ApplicationsLab 9: Designing InfoPath 2007 Forms for Mobile Web BrowsersLab 10: Creating and Inserting InfoPath 2007 Template PartsLab 11: Integrating InfoPath 2007 Forms in Web Sites Using Visual StudioLab 12: Using SharePoint Server Workflows with InfoPath 2007