It is realy confusing:

1) I tried to deploy the whole in project deployment model, but Data Tools said: ".....the version of the specified SQL Server instance does not support the selected operation" (it is SQL Server 2008 SP2)

So I believe that you cannot deploy a project to an SSIS Server Version 2008

2) I changed to package deployment model and then I got my next surprise:

"Storing or modifying packages in SQL Server requires the SSIS runtime and database in the same version. ;(((((

should I 'll better wait using SQL 2012 until ....