The FAQ of the ‘wp date remover-plugin’ states it will remove all dates from a blog, NOT specific / indfividual dates.
I suggest you do the following:
Install the superslider-perpost-plugin
http://ww.wp.xz.cn/extend/plugins/superslider-perpost-code/
This will allow you to add code to every individual post or page.
It gives you ultimate control, not just over displaying dates etc.
The precise code required to hide or remove these dates, varies a bit with your theme.
whatever the element… the value should be 'visibility:hidden;' or 'display:none;' depending on requirements.
Install ‘firebug’-addon in your browser to identify the element[s] to edit.