Sticky at top of page

I recently built a website using the 2010 theme. I now find I can’t have “Sticky” posts at the top of pages. Can anyone advise if anything can be done or a theme where I can do this?

I’m trying to post information at the top of more than one page to help the readers of the website.

[duplicate – please start only one topic per problem; continue with http://wordpress.org/support/topic/sticky-posts-in-2010?replies=3 ]