I am looking for wordpress plugin that would change title of page into post title. Can you tell me how to do it if plugin of that kind does not exsist.
Unsure what exactly you're looking for, can you describe it a little more? Are you just looking to SEO? You don't even need a plugin for that, if you just change the php in your header you can make it do that. If you want a plugin, All in Seo should do that.