Where can the customer who already purchase SDK for SBO get a ITK? Please give us the link to download it if you will have.
If you are still in evaludation period of your integration project, I suggest you use B1i (SAP Business One integration for SAP NetWeaver).
If you need any more information, please let me know.
Not sure if this is what you're looking for, but the only thing I could find is on the portal. Can't post a link because I'm not sure where to get the direct link from, so I'll give you some steps
Click SAP Business One Products in the left menu bar
Click Updates in the same menu
Click SAP Business One 2004 in the main window
There is a link below SBO-MYSAP Integration Toolkit 1.5
Hope it helps,