Magento Fixing issue and small design change.

Fix issue after upgrade of shop it is not possible to reindex data for one of the intexes. "One or more of the Indexes are not up to date: Catalog URL Rewrites, Product Flat Data. Click here to go to Index Management and rebuild required indexes." Fix front page we want that the big picture on site is changed each X amount of seconds automaticly and that the user can go back/forward. Standard stuff that i have seen on other websites. A plus is if we easily can add remove pages our selfes or we can settle with 5 pages that rotate that we can edit link/picture.