With regards to your question on timestamps; one of the options is to create a template override. In case of eZ Webin check extension\ezwebin\design\ezwebin\override\templates\full where you find article.tpl. This already is an override template file and you could take this as an example.
If you were to create your own override files, you could for example simply remove such code so those dates will not show. As far as I know there are no settings such as radio buttons or checkboxes to disable/enable these dates in the back end. If anyone has more/smarter ways of achieving this, please add them to the topic.
Regards Robin
Board member, eZ Publish Community Project Board - Member of the share.ez.no team - Key values: Openness and Innovation.