The_Contractor - 6:59 pm on Aug 9, 2005 (gmt 0)
If you have removed the pages - use a 404. I wouldn't want to redirect an area of a site that may have caused a problem or been one of the reasons for them dropping the site. If you are keeping the pages, I would block it via robots.txt and may even go as far as noindex, nofollow meta tag on each page. I would then email Google and explain the steps you took. I would not ask for reinclusion unless you are willing to take some corrective steps and letting them know exactly what you have done so they can confirm it.