If you have a InfoPath Form which is not published, then right click on the InfoPath Form, and open as design mode. then you can edit the InfoPath form.

I meant that, SQL Server 2008 Native client will we available as prerequests, this you need to install it before install SharePoint Server 2010 and SharePoint Server will use this SQL instance while configuration. so no need to purchase SQL Server 2008 / R2 as a separate components unless if you need it separately for custom table creation for your application.

Hi Venu, If you purchased SharePoint Server 2010, by default SQL Server 2008 Native client will be available with this product. So no need to purchase SQL Server 2008 R2. Note: With this default product there is no SQL SERVER Management Studio Tool.

With Regards, Nanda