Hi All,
I'm a DNN and SAP fan... I develop a DNN module (including sources) which calls a SAP BAPI BAPI_FLIGHT_GETLIST... This is a first example to show how DNN could be used to develop webportal for nonSAP user. For instance B2B/B2C portal, HR Portal, etc....
To do I used the SAP .net connector, Visual Studio 2003. Unfortunaly SAP .net connector doesn't work on Visual Studio 2005. But you can create a DNN module for SAP with Visual Studio 2003 and convert it with Visual Studio 2005.
This is a first version 00.00.01 ... usable with a minisap available on www.sap.com (around $30) and based on FLIGHT SAP application used to learn ABAP, SAP, Workflow, etc...
DOWNLOAD THIS MODULE HERE 
I will develop some new modules and tools for DotNetNuke and SAP all-in-one ;-)
Jerome www.sap-integration.net
(french SAP community under construction, not a business, no advertissement)
// Title : DotNetNuke Module for SAP.
// Author : Jerome Fortias jerome.fortias@gmail.com
// Date : November 8th 2006.
// Description : This example shows how to call a SAP BAPI
// From a DNN 3.X.X portal. BAPI_FLIGHT_GETLIST
//
// Note : You should modify the security level of your DNN portal
// <trust level="Full" originUrl="http://localhost/DotNetNuke/.*" />
// Rewrite the origin url if needed.
//
// Development note :
//
// - Install a DotNetNuke into the folder C:\inetpub\wwwroot\DotNetNuke
// - Create a new virtual Directory http://localhost/DotNetNuke
// - Login with host user and upload this module
//
// Now you can open the .sln file to modify this module.