Question please help!!

Check the docs: http://codex.wordpress.org/Category_Templates

You need to create a custom category template.

Then you need to create a custom sidebar template and add it to your theme where you want the sidebar to be, using a php include, or simply put the sidebar code right in that category template itself.

http://codex.wordpress.org/Customizing_Your_Sidebar

If you need widgets: http://codex.wordpress.org/Widgetizing_Themes