CRM 7.0 Portal Integration

Hello All,

I need to integrate CRM 7.0 <-> Portal.

Read this article - http://www.sdn.sap.com/irj/scn/go/portal/prtroot/docs/library/uuid/206cd953-41cf-2b10-7dbc-8a4d36664de5?QuickLink=index&overridelayout=true

and the pre-requisites section says that we need to install the Business Package for SAP CRM 2007.

Question:

1. In a summary, the integration happens basically by creating CRM reference system & creating BSP iViews in Portal.

So why do we need CRM Business Package?

2. The portal Integration section talks about XML file. Can someone please elaborate on this.

Awaiting Reply.

Thanks,

Ritu