promote to front and delete

Hi

I'm trying to make a filter for my feeds, with views, i found out how to filter keywords from a vocabulary with synonyms, and it works like a charm.
I cant figur out how to make my filter promote the nodes that pass trugh my filter, to the frontpage, and delete the nodes that didnt pass trough my filter.
I need this to be done right after the filter is run by cron (every hour)

Can this be done by rules, and if it can be done, can anyone point me in the right direction?

Regards
Kim