Triggering Infopackage with selection parameters

Hi,

1) I've a transformation from a datastore object(dso) to an infocube.

2) I've another transformation from a datasource to the same infocube. The infopackage on this datasource accepts parameters for selection.

Now my requirement is, i need to pass the values i'm getting from datastore object (1) into the infopackage's selection parameter(2) and trigger the infopackage. once this job is executed i need to execute the dtp which sits on the datastore object(1).

Could anybody help me how can i do it?

Best Regards,

Anbu.