Remove creation dates

Hi,

How can I remove the creation date of portfolio items?
It is shown the following places:

– in drop-down search results
– in list of all search results
– in the footer

Also – how can I change the category headers in the drop down search list. E.g. there is ‘post’ and ‘portfolio items’
I want to change ‘posts’ to ‘news’ and ‘portfolio items’ to ‘products’