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How do i place the widget where i want it to be?

Go in the admin panel under Appearance -> Widgets and place the widget in your desired sidebar, in a specific place. (drag and drop if on wp 2.8) or drag and save if < wp 2.8 =How to add timer to page/post: =

To add to post or page content, edit post/page or create a new post/page and you will see a box/widget at the right(usually) under categories(if working with post) .
If you check the checkbox you will be able to configure your plugin and you have to place the embed code [LCT-|-embed] inside your post.
The embed code will be replaced with the configured timer.