i had my site(Redline Maxed - Car Styling, Gear Knobs, Aerials and Vehicle Lighting) re-designed. I have switched hosting companies and the new site is online now. However, i was wondering what search engines will think of this. All of the old URL's (Except the home page) are inactive now but obviously still indexed by search engines. Is there anything i need to do to kind of let search engines know that the site has changed and all of the old URL's are now invalid? thanks in advance!