Language Arts

Well this is my first post.Anyway , I use this blog only for Language Arts. By the way, guys, do u guys know how toadd music n cbox after changing the blogskin.After I change the blogskin, there is no longer a link called Layout at the dashboard which is required to add the mixpod and cbox. If there's anyone who knows how to add the mixpod n cbox after changing the blogskin, please comment on this post.