Joomla Menu / Section Blog Layout Fix(repost)

I have a menu issue. I have just changed a section blog menu that was working properly and now it is not. i deleted a menu item then added a new item using the old content. when the new menu item is selected the content diverts to the home page not the menu page. ## Deliverables the website is [login to view URL] the menu item is the playlist menu. to view the issue: go to music >> playlist>>playlist 2010. also the latest news module demonstrates the issue as well (this can be found on the home page right hand side the menu item playlist 2011 works. i initially tried adding a section blog menu item to the main menu: music >> playlists this did not work. when you clicked on playlist it just reverted to the home page with the content displaying at the bottom of the page. i need the playlist 2011 menu item to function propertly and also the playlist module (latest news module) displayed on home page.