[lubuntu] Ubuntu can;t load after win8 install

view story

http://ubuntuforums.org – Hi, My laptop had winxp that was dual booting with ubuntu 12.10. Installed win 8 Pro successfully, now win xp can't load. That's OK as I plan to junk it. I still want ubuntu but it won;t load either. the wubildr.mbr in c:/ is there. Have a C drive spilt into 3 parts: C/D/E. Ubuntu is on E. The "ubuntu-gnome-12.10-desktop-i386" iso installer file is on E. What's the best way to get ubuntu to work? Should I just re-installed the iso file from E drive or somehow point Ubuntu to the correct file to load? How is that done? (Hardware)