Which patch to begin with SAP netweaver 2004s - BI 7.0

Hi every body,

I have some questions on this new BW release.

1)Which patch could correct the most problems on BI 7.0?

2)Do the configuration of instal an 7.O with using the 3.5 functionalities, means that we have not the 7.0 bugs on the new objects (DTP, datastore, ...)because we do not use them ?

3)In an upgrade configuration, do it exist a tool or anything which permit to upgrade, for example ODS into Datastore or update rule into DTP and so on ?

Thanks a lot for your answers

best regards

Ulrich LARCHER