Migration of BTS 2000 to BTS 2004/2006

Hi All,
I am new to Biztalk Server and i need few clarifications regarding the migration wizard in Biztalk Server 2004/2006.

Does the migration wizard supports migration of compnents developed in BTS 2000 as i have not seen in any of the documentation provided by MSDN.

Is that suggestable to migrate maps and orchestrations using Migration wizard.

Is EDI base adapteter compatible for EDIFACT 96A, as 96A was
not mentioned in the list of supported EDIFACT messages.

Is MS provided MySAP suite perfectly compatable to communicate
with My SAP 2004 ECC 5.0

Please suggest me.

Navs