documentation regarding dtsx packages

Hi,

Does there exist any documentation regarding the creation of dtsx packages.

Apart from on the forum, we have been unable to locate any documentation regarding the creation of dtsx packages.

We would like to know things such as what DataTransferMode and ProcessMode controls, and what the various tasks that you can use within dtsx packages are.

We are using SAP BPC 7.0 SP6 on SQL Server 2005. We plan to upgrade to BOPC 7.5 on SQL Server 2008 R2 next year.

Regards,

Mark