Since I take care of the coaster database, I'll take this one.
The coasters listed as defunct are really that. The name and park they're listed as isthe last location that ride operated. As for relocations, since the db design doesn't allow for links to current location, I had to go to a policy of using the coaster's current location and put it's previous in the comments field. A quick fix I suppose would to add a type of "Moved" to the selection list.
Hope this helps.
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Scott W. Short
scott@midwestcoastercentral.com http://www.midwestcoastercentral.com